Join Date: Mar 2017
Location: Orange County, NY
Oto with swollen belly
I bought 3 oto's from my LFS about 2 weeks ago. One died in less then 24 hours. Another lasted about a week before it died. I know that since oto's are both sensitive and wild caught you unfortunately have to expect some to die, so I bought 2 more 6 days ago to try and get companions for the remaining fish.
Fast forward to today, I came home from work and one of the oto's, no idea if it's from the original batch or the newer batch, has a huge, round abdomen/belly. It looks like a little marble with a head and tail. I saw no sign of any red streaks or marks and it appears to be able to move around normally. The 2nd oto that died appeared to have a distended abdomen also, but nothing as big as this current one.
I've been searching the web for any real information about this. I personally would think it is some kind of parasite, but in all the bits and pieces I've read I only come up with pregnant (don't think so), ate too much (really?), and "It's going to die".
Although the tank in the LFS these came out of has had oto's in it for several weeks now, I guess I can't assume that all the individuals have been there that entire time; they could constantly add in new ones I suppose. I really would assume that they have, as I mentioned previously, a parasite or a bacterial infection.
Does anyone know anything concrete about this symptom in otos? Should I treat the tank with something? I bought API General Cure because previously I've seen it recommmended, but I can't find out anything about the inactive ingredients and I don't want to kill off my Amanos or my nerite snail and of course there are equal numbers of opposing opinions about the safety of this product. It was the only anti-parasite medication that I could find in Pet... I've also read good things about Prazipro, but I would have to order it. Of course if it's bacterial or viral, neither of those meds will help.
The tank is 29G, planted of course, and currently houses 2 juvenile female bettas, the shrimp, the nerite, the otos, and some MTS. To complicate matters I have a shipment of fish arriving tomorrow for that tank. I really don't want to put medication in the tank if it could be harmful to anyone.
So, does anyone have any ideas about what is wrong with the poor oto or whether or not General Cure is really worth dumping in the tank? Does anyone know if new sick otos can transfer this "disease" to other fish? I saw no mention of that happening in what I read, but I would think it can happen.
Thank you very much inadvance!