Journal - 29G Black Schultzei Corydoras Breeding Project

[nabokovfan87]

On 5/5/2022 at 7:14 PM, nabokovfan87 said:

On 5/2/2022 at 10:31 AM, nabokovfan87 said:

PH 6.5
KH 50-60
GH 300+
Temp 71
Nitrite 0
Nitrate 40

PH 6.8
KH 50-60
GH 300+
Temp 73
Nitrite 0
Nitrate 25

Testing this week is:
PH: 7.0
KH: 60-70
GH: 300
Temp: 74-75 (it's officially summer now)
Nitrite: 0
Nitrate: 20 (I literally just dosed)

What a change a couple of days brings.

About 5-6 days after the previous lighting changes, adjustment to fertilizing, and a few water changes, I *finally* started to see some new growth. The tank itself is "finally working" and despite how bad all of these plants are doing, I know part of it is melt and part of it is just fighting algae and trying to hold on.  What I realized when keeping an eye on things, and thanks to finding someone posting a guide sheet for various types of algae, I've been running my nitrates too high and keeping them at too high a level.  I definitely like the lighting I had running, but there was definitely some dead spots and issues getting that light to the substrate.  The wood and Anubias is just in the way and I see this mostly in the melt/struggle of the Sterogyne Repens. My first pot looked to be starting new growth, but it's just not doing anything. the second purchase I made seemed to be doing better and they are starting to show some pretty bad coloration (melt) and I don't see any new growth yet.

I am very encouraged by the DHG though. Even in the back left of the tank where I was very concerned, I do see new chutes and new growth. 

Alright, Story time, and let's dive right into the big changes.  I have the upgraded lid (the amazon brand) and overall it's "not great" but it's much better than having the aqueon versatop black hinge in the way.  I also got my CO2 regulator back up and running and found out why it wasn't working properly before. In a few days when I do have the timer and/or when I am satisfied with the lighting changes I will go ahead and drop in CO2.  I really don't want to crash the tank, so I have 2 CO2 tanks now, one is empty, and I will not worry about having a week or two of time without CO2 on the tank.  Problem solved!

That being said, I don't know what the impact will be of the CO2 on the algae issues. It will be a fun little experiment (or time lapse) to see what happens.  I need to remove the extra air I'm pumping into the tank and will do all of that once I setup the tank in the family area for my panda corys.

Here's a few shots of the light for comparison sake and anyone who has a 29G and might want to see the difference between the two options.
Hood Placement: 24" vs. 36" vs. 36" (rotated)
Note: This is showing placement with all LEDs on the top of the tank and not obscured with the rim or overhanging the rim

Here is a side by side to show you the difference in actual LED coverage:

Lighting Comparison: 24" vs. 36" vs. 36" (rotated)

Here's a few closeups of the growth or lack of:

 

OH..... one more thing.

I found this today. 😕

Edit: I double checked to make sure the camera wasn't doing any weirdness. Here's a straight on shot, same settings comparison.

The biggest indicator for me is the "haze" about halfway down the water level in the middle. The other one that stands out to me is the lower left piece of Seiryu stone and how you can see the face vs. how it's shaded out.

Edited May 15, 2022 by nabokovfan87
resize photos

[Ken Burke]

On 4/25/2022 at 12:11 PM, Guppysnail said:

I have such a soft spot for wiggly catfish 🥰 They are beautiful.

Wiggley cat fish😘🥰😍🥸

[nabokovfan87]

Brief update..... Progress!?!?!?

I see new growth and it's very exciting. The shrimp are hitting the algae hard and the deep clean seems to be working decently.  I have not done the water change yet today.  Here are the parameters this morning.

PH 6.5
KH 50-60
GH 300+
Temp 74
Nitrite 0
Nitrate 10

I do see PH and the KH falling off slightly.  I am working on getting a lot better results with the crushed coral by trying to fix the HoB itself. I might end up adding an aqueon or something just to house the crushed coral.  During the deep clean I also removed the indian almond leaves to better give the plants a chance to carpet.  One of the leaves against the glass started to fungus, no big deal, but I just don't think they are beneficial to the tank right now.

The "before" pictures were taken on the 16th:


Today's Photos:

[nabokovfan87]

What do you think? Am I going to wake up with eggs!?

Update!  I was watching the fish last night, just checking on things and I saw the big female cory going all over the tank.  Extremely rare!  Her stomach was yellow and it looked like she was trying to hold eggs out, but entirely difficult to tell.  Obviously she was by herself and there was one male who swam with her for a moment.  I think her being so big just sort of scares off a lot of interaction, difficult to say.  I did not wake up with eggs in the tank, the party of 1 was definitely not fruitful, but it was pretty fun to watch the fish interact.

A few notes....

For me, it's always nice to see breeding behavior in some capacity because I know there are issues with the tank, but it also means that they want to breed and don't have a spot to lay that they are comfortable with.  I see something like this and I think to myself, "if the glass was scraped maybe, if the moss was there, maybe, if the mop was there, maybe."  I have gotten eggs from these guys and this female twice before, but it's been very far apart in time, which is fine!

I think her behavior was based on the wind storm we had, as well as the KH buffer I had added to the tank this week.

I also wanted to note, that's it was fun to show off to everyone my shark interacting with the rest of the tank.  It goes to show their normal behavior and how she can act.  I think she grew up with my pandas and just really enjoys them.  She does get a bit "big shouldered" and bumps them from time to time.  She gave an amano shrimp a hip check, but it was still nice to be able to show her normal personality!  I will be very excited when she gets to move to the new tank and when all the fish themselves are able to have a bit more space.  The corys might relax a bit and hang out under her little cave, and she will be back with her panda bros in the main tank.

I did turn down the lights, because I do see some algae going to town. (90-->80%).  I am still seeing a lot of success with the growth of the plants, low nitrates, but I want to do another deep clean and then work on getting it past this stage of having the staghorn/BBA everywhere.

I'll add parameters after I've testing them today and I'll go ahead and try to record a video showing the growth instead of just a few photos.

PH 6.8-7.0
KH 60ish
GH 300+
Temp 76
Nitrite 0
Nitrate 10-20
*I added 3/4 of a tsp of Alkaline buffer to the tank during this WC*  (this is about 1/2 the recommended dose)
 

 

Edited May 30, 2022 by nabokovfan87

[nabokovfan87]

On 5/29/2022 at 10:59 AM, nabokovfan87 said:

PH 6.8-7.0
KH 60ish
GH 300+
Temp 76
Nitrite 0
Nitrate 10-20
*I added 3/4 of a tsp of Alkaline buffer to the tank during this WC*  (this is about 1/2 the recommended dose)

PH: 6.5-6.7
KH: ~60
GH: 300+
Temp: 76
Nitrite: 0
Nitrate: 15-20
*I added 1 tsp of Alkaline buffer to the tank during this WC* (50% WC)



It's been an eventful week for this tank.

I did move fish this week from my spare tank to a dedicated 29G tank in the living room.  Long story short, this is in lieu of having the 75G community tank mentioned in the OP.  This also gives me the freedom to dedicate the tank we are discussing here purely for these Black Corydoras and my Amano shrimp.  I did see PH/KH start to drop off, but I think my fixes to the Seachem Tidal filter as well as the buffer during WC is going to keep things stable.  Ironically, if I don't change water weekly, PH sharply crashes due to KH slowly falling from ~55 down to 40.  I want to get the buffer high enough so that I can run things bi-weekly if need be.  I do need the plants to take off.

On that note, I do have CO2 ready to go.  The last item I needed was distilled water for bubble counter.  I did order meds for this tank and will be running those for an undetermined amount of time to ensure these fish are healthy before I try to push hard into CO2.  I don't want to stain the equipment while running ich-X and overstress the fish.  Once things are ready to go, I'll turn on the CO2.  I replaced the older mechanical timer I had with the KASA/TP-Link version and it's much nicer to have that.  Instead of plugging/unplugging things during WC I am now just simply having to push the button.  Again, this simply means everything is ready to go whenever the time is right for the tank.

I am still seeing new growth on the plants, but not as much as I'd like. I do think this is because I am not dosing enough (weekly after WC).  I have tried to add a half dose mid week and will keep monitoring to see if this helps or hurts things. I did see this perk up the Staurogyne Repens ever so slightly.  Right now everything is in flux, but the hope is things keep moving forward. I added 3-4 more amanos that were in my QT tank, upping the total to just under 15.  There are some that are very small and the rest are larger size, much older.  I also added 1 oto from the QT tank that brings the total to 4, potentially 5.

I am anxious, excited, impatient, concerned, but more than anything I just want these 5 fish (and their friends) to do well. I am treating for worms/internal parasites because there is a very high chance that it's been a cause for some lethargy in my clown plecos as well as my larger female corydoras. When I purchased them I did do the ACO QT method, but I did not realize there was a secondary internal parasite medicine.  As a result of this, and watching their behavior for a very long time now, I am planning to treat them with everything I have (in stages) for the sake of ensuring I've done everything I can to give these fish the best chance of survival. My clown pleco has always been chunky, potentially has internal worms, but since removing the caves the coloration has come back for the first time in a very long while. I do think it could just be eggs, but it was from a petco, has been treated with the QT meds, but I think it makes sense to go ahead and re-dose this tank with everything and give them the chance to kill of anything harming them.

If you have any advice for how to treat this many meds, when to add salt, how much of a break to give these fish in between each internal parasite med, I would really appreciate it!

[nabokovfan87]

Unfortunately, I must admit I haven't been looking forward to this post.  My tank hasn't been doing too well and it's been a stressful few weeks aside from the tank having major algae drawbacks.  I posted about it elsewhere, but I did realize I made one error when I had set the light up before. I had intended on a 10-12 hour lighting period, but had instead mistakenly set it for a 14-16 hour window.  I had reduced the light from 90% down to 80%, and now it's at 70%, but it took me a little bit to realize the error causing the issues. 

Right now I'm letting the fish recover a bit from the first dose of meds. Everything went well on that regard. I do see a TON of new growth and my hope is that the reduced feeding means the amanos will go nuts on the algae and take care of it.  Did they?  Yeah, but they also had to deal with the algae growing as fast as they could eat it.  I am seeing positive signs of growth right now and it's the type of thing where I don't know if I'm making the right decisions or contributing to the algae growth.  Light has been reduced enough to the point where I want to run it for a month and see how things progress.  The "not knowing" right now is dosing once a week or dosing twice a week.  When I changed that variable last time it didn't help the tank, but I am seeing deficiencies on the Anubias and I want to get things moving in the positive direction.  When I do turn on the CO2 I will be dosing things 2x a week at minimum.  It'll be so interesting to see what the tank does with CO2!

I was dejected because I had thought the plants wouldn't make it to that time.  They died off quite a bit in some spots and had me very concerned I was going to lose everything again.  The new growth in the past 3-4 days has me really encouraged.  KH seems to be high enough to be considered stable and the plants seem to be doing well now (Knock on wood).

I'll grab test results below, but here's the plant update from earlier today. Please enjoy.

These are the results from mid-week prior to dosing the tank.


Todays results, about 3 days later:
PH: 7.2-7.4
KH: 80
GH: 300+
Temp: 77
Nitrite: 0
Nitrate: 10

[sweetpoison]

Nabo ~ I am sorry you’re having such a problem with your tank. You help out everybody else so much I’m sure that you will figure this out!

♥️

 

[nabokovfan87]

On 6/18/2022 at 4:36 AM, sweetpoison said:

Nabo ~ I am sorry you’re having such a problem with your tank. You help out everybody else so much I’m sure that you will figure this out!

♥️

Definitely appreciate it!

It's a slow and steady effort for sure. I'm hopeful that the next time I'm able to check in and spend time with the tank things are progressing well. We'll see!

[Guppysnail]

It’s definitely disappointing when things go astray.  I have tried to stop looking at those stray rough times as setbacks from my perfect vision of the tank. Now I try to look at those as the perfect learning environment for me to learn how to deal with issues. Still doesn’t make my tanks look the way I want them to but it makes me less stressed. 

[nabokovfan87]

Test results:
PH: 7.0-7.4 (difficult for me to read)
KH: 60
GH: 300+
Temp: 76
Nitrite: 0
Nitrate: 10-15

Issues: Worms 😩

I have been sick and so has the house, so things have been sparse.  Please forgive me if I miss something or repeat something mentioned previously.  I'll attach a thread above for what I've been trying to diagnose and deal with.  I am being told and am in agreement that these are very, very likely detritus worms.  There's a few reasons it could've happened, but the point of mentioning the story is that it happened and I need to find a way to deal with them long term. 

Attempt 4: Hopefully these plants take hold!

I got the new plants today and just finished adding them to the tank.  I inspected for nasty things, but honestly anything that would come into the tank is going to get treated for next week.  Snails I can deal with (didn't see any, don't want any) and everything else should be handled by removing these worms.

The idea being with this batch is that I desperately need to add some plant load to push back this algae for good!!!!

I have added 2 stem plants, moss, susswassertang, and re-planted more of the dwarf hairgrass as well as staurogyne repens.  I tried to get plants from a different source simply because I was trying to get a few plants not offered by the co-op. 

I have been trying to get susswassertang for bordering on 2 years and have yet to find a good source.  I found some on steel mesh (not a fan, it's cut up my fish before) and opted to superglue that mat to some suction cups and stick it on the glass.  I also added my giant seiryu stone for the sake of balance on the aquascape as well as having a location for the moss that will be a nice little wall for the corys to lay their eggs on.  (Think, fern canyon wall in northern California)  I also got the little anubias nana petite and stuck the guy back on his spot. I apologize every time it gets dislodged during a water change, but I am trying moreso to be gentle with my refills.

I HOPE, desperately, that these plants take off. When they show signs of receding, I am planning to turn on the CO2 tank and just go full swing back into trying to have a fully planted tank again.


 

The stuff that's very small is the older plants that I've had for a while now.


Behind the S. Repens is some Hyrgophilia Pinatifida (and some hairgrass to start the carpet on the left side)


The little guy and his little amano friend.  You can also see the new vs. old DHG on the right there.


Tissue culture moss on the rock, the substrate is now sloped pretty heavily front to back (higher in the back) and the rocks provide a higher level and can hold up a section for the plants behind.  Once the DHG does decide to grow outward it will fill the front area and hopefully progress leftward to fill the carpet out.


I'm trying to show the side mounted mat here. It's not perfect but I think it will hold. I might have to go around the mat edge with some silicone or superglue to try and seal any sharp edges. I'll mess with it the next WC if it has any issues.  I had half a mind to try to install it into a hang-on box and give it lower flow.  At this point, hopefully something decides to take off and the suss stays around this time.

The stem shown here was purchased as a potted plant, it wasn't.  It was a plant that was from trimmings and stuck inside a miniature pot and had some rock wool to keep it in the pot. ZERO roots.  We'll see how it goes and needless to say I'm pretty mystified at why in the heck I had to pay an extra few dollars for a pot when I didn't get one. You live and learn.

Anyways, it's a purple version of a bacopa species.  I do have some iron on hand if need be and it's going to be very near where the CO2 will be mounted (below the skimmer).  My hope is that things can take hold, I can finish with meds, drop in CO2 and see it go nuts.

Edited July 7, 2022 by nabokovfan87

[nabokovfan87]

I did run a water test! But, then I got too involved with removing the worms from the substrate and so I forgot to read the results in time.  I am trying to let the buffer do it's thing and then I'll re-test and edit this post accordingly.  Typically I test prior to changing water.  I did about a 50% water change.

Edit: Results

Temp: 78 degrees

PH: 7.2-7.4

KH: 60

GH: 300+

Nitrites: ~.25-.5 (probably from the worms decomposing?)

Nitrates: 15-25

Here's the check-in on the plants:

Hairgrass looks to be doing ok.  I do see new growth. The paleness is likely due to the salt and other stuff going on in the water the past couple of weeks.

Bonus gigantic worm as well which I had to make sure was a bloodworm and not some super form of these parasites I'm dealing with.





New plants seem to be doing ok  Hygro looks to be doing fine.

On the S. Repens I don't see much "new growth" but I do see new roots, which is a good sign.

Finally, the gem that amused me this afternoon was this little growth of anubias that is just too perfect.  For whatever reason it's growing in this way and it's likely due to placement in the tank.  The new leaves are growing in 3-5 at a time in a stack and are growing in very small instead of what I normally see.

I also took a picture of the Anubias that is slightly lower in the tank.  I assume the pale leaves means I need to increase dosing.  I've been pretty lean with things just because of trying to keep stress on the fish low.

Edited July 13, 2022 by nabokovfan87

[nabokovfan87]

On 7/12/2022 at 7:42 PM, nabokovfan87 said:

Super minor update.  This is the same plant, 1 week and some change later.  This is what I mean when I say I have new growth and then things take over and then I have more new growth and things take over.

I moved all the anubias that was too close to the lights, and I opted to move ones that were too close to the glass / flow to try and reduce this specifically on the anubias itself.

 

[nabokovfan87]

Minor update

Meds are still going, Probably 2-3 weeks remaining I think.  I found a stinking snail today so those are in there likely with some friends.

I added the CO2 last night, was slightly annoying to setup, but I think I have it dialed in.  I tweaked around with settings slightly and it looks to be doing fine.  Drop checker isn't showing me too much, but the plants are doing their thing.  That's what I wanted to see and I'm excited to keep track on things over the next couple of weeks.

New moss is growing, plants have new growth.  I do see some algae on the bacopa and the DHG is slightly struggling.  The Hygro is doing well, it's very difficult to keep planted and the corys freak out and move it around more often than I'd like.

Here's the plants when I checked on everything this afternoon.  Part of this is just dead leaves releasing some gasses, but this is nice to see!
 

 

[Brandon p]

On 7/28/2022 at 6:58 PM, nabokovfan87 said:

Minor update

Meds are still going, Probably 2-3 weeks remaining I think.  I found a stinking snail today so those are in there likely with some friends.

I added the CO2 last night, was slightly annoying to setup, but I think I have it dialed in.  I tweaked around with settings slightly and it looks to be doing fine.  Drop checker isn't showing me too much, but the plants are doing their thing.  That's what I wanted to see and I'm excited to keep track on things over the next couple of weeks.

New moss is growing, plants have new growth.  I do see some algae on the bacopa and the DHG is slightly struggling.  The Hygro is doing well, it's very difficult to keep planted and the corys freak out and move it around more often than I'd like.

Here's the plants when I checked on everything this afternoon.  Part of this is just dead leaves releasing some gasses, but this is nice to see!
 

 

Love the black corys. That s one of the few I haven’t had. I can’t get over the price. When you breed some you can send them.

[nabokovfan87]

On 7/28/2022 at 4:07 PM, Brandon p said:

Love the black corys. That s one of the few I haven’t had. I can’t get over the price. When you breed some you can send them.

Yeah, I need to get more 😞  I lost too many when I first got them. 

[Brandon p]

On 7/28/2022 at 7:39 PM, nabokovfan87 said:

Yeah, I need to get more 😞  I lost too many when I first got them. 

Sorry about that. They are beautiful fish. It one fish I haven’t seen in person. Do they look as nice in person.

[nabokovfan87]

On 7/28/2022 at 8:00 PM, Brandon p said:

Do they look as nice in person.

That 2nd link I have in my signature is of an article showing two different fish.  I was so confused about what I was buying when I purchased them, but the easiest way to tell is which part is orange.  They are a very nice dark grey in person.  The orange is sort of like a bolivian ram where it's subtle on some days and other days it's as bright as can be.  The behavior has been really subdued for what I'm used to, but I'm trying to fix that now.  They are monumentally beautiful and I always find myself sitting there wishing I had fry popping up all over the place.  There's a lot of fine details, fine lines and their plate structures that's pretty hard to appreciate without having a nice camera or having the right lighting and what not. 

I really do love corydoras and it's awesome when they get comfortable how much they brighten up or show off.  Even my pandas, I really appreciate all those fine details I'm seeing that you'd never see at just a glance.

LOL, he's looking at me "whatchu doing bro?"


This is of my large female:

[Brandon p]

On 7/29/2022 at 12:47 AM, nabokovfan87 said:

That 2nd link I have in my signature is of an article showing two different fish.  I was so confused about what I was buying when I purchased them, but the easiest way to tell is which part is orange.  They are a very nice dark grey in person.  The orange is sort of like a bolivian ram where it's subtle on some days and other days it's as bright as can be.  The behavior has been really subdued for what I'm used to, but I'm trying to fix that now.  They are monumentally beautiful and I always find myself sitting there wishing I had fry popping up all over the place.  There's a lot of fine details, fine lines and their plate structures that's pretty hard to appreciate without having a nice camera or having the right lighting and what not. 

I really do love corydoras and it's awesome when they get comfortable how much they brighten up or show off.  Even my pandas, I really appreciate all those fine details I'm seeing that you'd never see at just a glance.

LOL, he's looking at me "whatchu doing bro?"


This is of my large female:

Love them. I love some of the bottom fish especially corys and plecos. I think I’m going to start to be on lookout for 2 more 55g or 5 20 gallons to put on the second level of my stand. It’s not a big priority but getting cheap used tanks takes time. I would like to have a tank of them and try some top water fish like Hatchett fish.  I have 10 feet so could go with 10 20g turn so the end is forward 

Edited July 29, 2022 by Brandon p

[nabokovfan87]

On 7/28/2022 at 10:27 PM, Brandon p said:

Love them. I love some of the bottom fish especially corys and plecos. I think I’m going to start to be on lookout for 2 more 55g or 5 20 gallons to put on the second level of my stand. It’s not a big priority but getting cheap used tanks takes time. I would like to have a tank of them and try some top water fish like Hatchett fish.  I have 10 feet so could go with 10 20g turn so the end is forward 

You'll have to show me what your stand looks like now! I would love to have 2-3 20L tanks to play with, but I just can't with the current situation right now.  There's so many interesting fish, so many unique species that do so well together in a community or species only setup.

Pepper Corys is a big one for me right now. Along with the actual venezuelan corydoras.

[Brandon p]

On 7/29/2022 at 3:26 AM, nabokovfan87 said:

You'll have to show me what your stand looks like now! I would love to have 2-3 20L tanks to play with, but I just can't with the current situation right now.  There's so many interesting fish, so many unique species that do so well together in a community or species only setup.

Pepper Corys is a big one for me right now. Along with the actual venezuelan corydoras.

It’s just 2x4 and cinder blocks I only have one level now but I you can go 2 high. The 75 is an a oak stand that it came with. The smaller tanks and tubs are on Home Depot wire racks. 

[nabokovfan87]

Sidenote.  I just wanted to clarify that I updated the title to actually have the correct species.  I will try to fix all the references if I've posted the wrong name elsewhere on here as well.

It's a whole rabbit hole and I just found a new variety of "black corys" that are from Venezuela and look ridiculous. (Slate Corydoras)

I added the 2nd dose of Expel-P, CO2 is on the tank now, off for the next 24 hours, and I've been running PH Tests / CO2 tests all day today to try to figure out if I am effectively buffering the water with the diffuser I have, checking bubble rates, etc.  Long story short, KH, PH, and CO2 are kind of difficult to balance out when you're having to buffer your KH.

I'll get there. Plants are doing good. Water parameters look good as well.

[wes.crockett]

This is an epic thread. I learned one major thing here... This isn't a hobby that becomes passive over time. I need to talk to my son (7) to discuss being more regimented about water changes, testing, and observations. 

Anyone find a nice app for documenting over time?

[nabokovfan87]

On 8/3/2022 at 1:45 PM, wes.crockett said:

Anyone find a nice app for documenting over time?

I used one on android, also available elsewhere.... There is a version 2 now.

https://play.google.com/store/apps/details?id=com.dyhwang.aquanote&hl=en_US&gl=US

[wes.crockett]

On 8/3/2022 at 4:40 PM, nabokovfan87 said:

I used one on android, also available elsewhere.... There is a version 2 now.

https://play.google.com/store/apps/details?id=com.dyhwang.aquanote&hl=en_US&gl=US

That's a nice app. I went ahead and DL'ed got it all configured. thanks!

[nabokovfan87]

Tank was just dosed hours ago with 3 pumps of Easy Green so this may skew results.

Phosphate testing Results

-Tank: Approx 1.0 ppm
-Tap: Approx 0 ppm

I did end up dropping the light another 10%, bumping the CO2.  I ordered a new drop checker (shape on this one is a bit wonky and might be causing issues, the air bubble doesn't sit right).  I also ordered a new diffuser for the sake of "if" I need one that works a bit better for the tank.  The new one I can drop much lower in the tank, which will help.  I am still working on placement and trying to determine if I should move it, scrape the back glass and drop the CO2 right under the HoB outlet, or just add a pump head on a timer with the CO2.

 Next step is daily or testing often for fertilizers and then potentially reviewing lighting by adding a siesta in the middle.  The only real concern is that it would be a dramatic change and I am focused on very small changes.  This stuff absolutely SUCKS to try to remove manually.

Edit: I hooked up the pumphead and it's way too much flow for this tank.  The otos, plecos, corys all didn't enjoy it.  I wish I had one with a nozzle to better direct it, but I also just with I had one about 1/3 the size and power.  The one I have is an Aquatop from ACO back in the day. 158 GPH I believe was the spec.

Edited August 9, 2022 by nabokovfan87