Cardeater

I just decided to put them back. I think it's just damage from running into something. Mark still remains the same. I think the male got a damaged swim bladder from me transferring him over or from running into the sides of the tank, which I saw him several times when I would try to get a close look at them. I suspected this bc he stayed at bottom of the tank (still upright though) and swam sort of diagonally oriented up. It was obvious when I put him in display so I put him back in QT. Im trying putting Epson salt treatment but my experience in the past is that these swim bladder problems usually don't fix themselves. I did have on praecox that seemed to have a swim bladder issue that lived a year. Swim bladder for better but she swam a little diagonal but was able to eat and live for awhile. Im gonna keep a close eye on this female that I out back everyday but she seems fine so far.

Thanks for the responses. I was hoping it was just damage from running into something which my rainbows have done several times a year. Two years ago, one really looked like he smashed into something with hump but he recovered with just water changes. I found this post here with a goldfish that people thought appeared to just have red in fins from running into something I slowly changed out the salt about 5-7 days after I posted this. The mark hasn't spread. Looks like it's permanent. Fish don't show any signs of any issues other than that and being stressed as I describe in the next paragraph. Do you think I can just move these two back. They seem fine other than being stressed in this tiny tank. I've actually been keeping it covered bc they look fine when I cover most of the front. When I take towels off, they seem stressed and stay at bottom of tank. When I cover and take a sneak peak later, they seem to act normally. Just took these pics now The male rainbow that's been in here looks perfectly fine. Nothing since whatever was on his back came off when I moved these two over. It's been about two weeks since my original post. I assume if this week an infection, they would have gotten worse? What a plan of action for returning them to main tank? Thanks.

Hi, Id like to get an opinion on what this is on this female Dority rainbows fin. How this started is I thought I saw fungus on a male rainbow M. Splendida which I have a pic of below. I also thought it might have just rubbed some scum from a plastic plant. Then I found a male Dority dead which may be unrelated but it got me worried. I also noticed this mark on this female when I was looking over everyone. That was Dec 9 (so 8 days ago). The main tank inhabitants seem fine. I don't see anything concerning on them. I've done 3 water changes on that tank. That tank has two clown loaches that I've had since 1995 and rainbowfish I got in 2018. No problems other than some fish dying over the years, including a pleco that died in Sept (I assume from old age bc I had that fish also from 1995). I did receive a bunch of fish that are I quarantine a week prior to this. That tank is on the other side of the room and I'm careful not to cross contaminate but anything is possible. Like I'll literally wait a day and shower in between water changes. Two fish in that new group quarantine had damaged lips and are in salt treatment and they look better now. Lips are almost fully healed. These two rainbows from my main tank have been in QT in a 10g for about 8 days. First 3-4 days with 1 tablespoon per gallon, and 4 days with 2 tbpn. Just did a 50% water change and put 4 tablespoons in so salt is a little more concentrated now. I thought this might be some disease but it could have also ran into something as rainbows often run into stuff. Water Parameters: pH. 6.8 Nitrates 10 (well half now as I water changed 50% after I tested) Hardness 300 Nitrite 0 Ammonia 0 KH/Buffer 40 Water Temperature 71 The top two pics are pics of the female that were taken today. Bottom two shows what I initially was worried about with male M. Splendida Dec 9. When I netted him out, whatever that was came off during the transfer as can be seen in the bottom pic. He looks fine since then and no visible signs of any possible disease on him. Any thoughts or comments would be appreciated.

Thanks again everyone for the feedback. Yes, there is driftwood and rocks in the main tank. Several of my rainbowfish have scraped themselves before. The injury usually manifested itself as a dropped or hanging scale. One other time, a fish had a mark on its tail. One male millennium rainbow even ran into something hard enough to leave an indentation on his hump. In all these cases, the injury seemed to heal and no scars or anything remained. I initially thought in March that the one of these two that has the most marks on his hump had scraped himself. I was hoping the mark would just go away. I only got worried when I so more marks. It is possible that he scraped himself several times. I looked these two again: they appear the same as in the last picture. When would you feel comfortable slowly reducing the salt concentration and eventually moving them back to the main tank? I've been erring on keeping them in the QT tank because I'm afraid that if I'm wrong and they are sick, they'll infect the tank. There aren't any more marks on either of these two males and you'd think that the 1 tablespoon of salt per gallon for two months would get rid it if it's a disease, or it would get worse.

Any other ideas? I took more pics today and marks on hump seem the same. The scale damage on the side of this one that he got a day after I moved them in here in late July seems like 75% healed. They are still in 1 tablespoon per gallon of salt. Before I'd even consider moving them back, I'd wait for the dropped scales on the side to fully heal. That looks likely to happen without any change to the white marks on the hump (and it will be 4 months since I moved them). I don't know if I should consider meds, and if so which ones? Thanks for any additional input. News pics from today:

I always assumed it was a swim bladder disorder when fish swam erratically but it's interesting to hear that it's nervous system problems that can be the cause.

Thank you for the reply. I don't think it's ich bc thee amrks are not round and numerous like ich cysts I've seen before. The marks on these fish haven't spread. I had an inch outbreak years ago and I remember it looked like someone used a salt shaker on the fish. I want to clarify that they aren't rubbing on anything. I think the one fish might have scraped scales from fighting or nipping by the other male in the QT tank. For the first week or two, they seemed really stressed in the QT tank. Nowthey seem more calm and go grab food as soon as I drop it (for awhile they'd seem to get agitated when I opened the tank). I'm not sure what my game plan should be now. How many more weeks should I keep them in this 1tbsp.per gallon salt before I consider using meds? Edit: As stated above, they've been at this current salt concentration for two months now

Hi, I'm at a loss on what to do with these two Dority rainbowfish. One has 4-5 areas with maybe 8-9 white or discolored areas. The second fish maybe has one area with 3-4 spots. It is only on this hump area of the fish in question. There are no other spots/areas anywhere else on the fish, except for maybe on the lip. It's hard to tell. It is definitely not on the sides or fins. These fish were in my 125g display tank. I had them for close to two years. In March, I noticed the discolored area on one fish and I thought maybe it had just ran into something (several rainbows have injured themselves by running into stuff, but it usually healed by just doing frequent water changes). None of the other fish seems have this issue, including 7 clown loaches, a hypostomus, several other rainbowfish, and panda garra. The only other issue is that a Dority rainbowfish died of swim bladder in Feb from this tank (I had isolated him). July 25, I decided to post on another forum as I started to get concerned it might be something contagious and I was afraid it might spread to my other fish (including some 20 something year old clown loaches I have). On Aug 3, I decided to move these two into a 10g hospital tank as I thought I might have noticed a new spot on one of these two. I remembered that Salt livestream video and watched it again Aug 6 and began salt treatment. I started with the 1 tablespoon per 3 gallons. August 14, I noticed one fish had a bunch of dropped scales (I think he might have rubbed against a heater during sparring/fighting. When they were first in the QT tank together, they seemed to keep bothering each other. That area has healed up over time but I can still see where that damage occurred. August 26, I tried feeding Hex shield food from NLS on the off chance that it was hex/HITH. I also upped the salt to 1 tablespoon per gallon. They been at 1tbsp per gallon since about August 26 until now (Oct 23). The dropped scales seemed to have healed a bit but these marks are still on this fish. I remember one of the recent livestreams said not to throw random meds at the fish so I've kept the salt but decided to post here for advice when I found out about this forum. I have the original med trio on hand (Ick-X, erthyo, and General cure), kanaplex, and furan 2 in my fish room if any of these might help. I changed the water 2-3 times a week in this tank as the poop starts to be noticeable on the bare bottom tank. I replace the salt for the water removed. I do either a 25% or 50% water change. PH 7. Nitrates (I think the salt might be messing with the strips) but it was around 10ppm when I'd water change. Ammonia is 0 Temp: In the display, the tank was/is around 78-9. These QT tanks were at 77-78 but since weather has gotten cooler, they are at 73-74 (I don't run a heater as the room is this warm). I appreciate any help. I will try to edit and post pics from my phone as I have typed this on my computer. I'm not sure if this forum allows edits. If I can't edit, I guess I can just reply with the pics. Thanks for any input. These two were taken today. This was back from July when still is display 125g