Hello, Forum!
I’m hoping to get some tips and insight here, or at least reassurance or caution about the direction I’m taking:). Below, I will post some pics of what I have going on in my aquarium, what I believe it is, what I’ve done so far, and what I plan to do in the upcoming weeks. My apologies in advance for being very long-winded. Just trying to put as much info in that I remember in one go.
So, what I believe I have going on is an overabundance of diatom. I am hoping I haven't gone down a slippery slope towards beard algae, but the usual brownish look of diatom seems to be turning black and furry in my aquarium (see pics). The growth in the photos is after one week.
I have had this aquarium set up since the beginning of March. I used a seeded sponge rated for 75G (its a 30G tank), and this is so far the only filtration I use, powered by a whisper 40 air pump. I have a Finnex 24/7 planted light, which I usually leave on the auto full-day setting.I have a heater set to 78 degrees. We’ve had a bit of a heat spike the past week here in Chicago, so the temp jumped a bit to 82, but trying to keep my tiny a/c unit in a job:D . Until about 3 weeks ago, I was using Fluorish once a week, after a water change, and at that point, I put about 4 fluorish root tabs in the tank. I haven't fertilized since. I usually feed the fish twice a day, but this week, I’m starting to ramp back to once in the morning.
Diatom has always been a thing, as I understand it is in most new setups. I typically do a 40% water change every week, and the diatom has ebbed and flowed throughout. Recently, I decided to try to go a little harder at it. I did a 30% water change every day for a week. The first day, I sponge cleaned a lot of the diatom from the plants, rocks, and wood, employing a toothbrush as needed. I cut the light back to zero for 2 days, then slowly brought it back the rest of the week to an overcast setting. The following week-which was last Saturday-I set the light back to its factory 27/7 cycle and did my usual water change, and the diatom growth, as you can see in the pics, has exploded everywhere! It doesnt seem to be bothering the fish, and I have also seen some new plant growth this week, but it is definitely unsightly, and I don’t want it to start choking out everything.
My initial thought is, to do another water change into a large bucket, then scrub the rocks and wood in the bucket. Also, gently wipe the debris off of all the plants while slurping out the old water. From there, next week is payday, and I thought it would be a good idea to buy some more plants-to hopefully eat up more of what the diatom is eating-and possibly buy some Easy Carbon, and start applying that until I notice some dropoff, while still maintaining weekly water changes. From there, possibly cut my lights back more? Additionally, I am picking up an old SunSun canister filter from my storage space, and thought it might not hurt to load it with bio, and have an extra filter system that adds a bit of flow rate to the tank.
As to whether or not I’m getting beard algae-my concern is the slightly different, furry carpet like look of this recent bloom. That said, it still seems to lift off pretty easily, much like diatom.
Well, thats what I got, and what I can remember right now. Thank you in advance, if you were able to make it to the end of this, and for any feedback you might have. Thanks!
ps-I’m also having some algae issues in my 10G tank, but more on that later…