Oscar bloated? Or am I paranoid?

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CombatWombat

Feeder Fish
MFK Member
Apr 23, 2019
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Hi all, I have been reading this forum from time to time, but this is my first post.

One of my oscars seems to have a big belly. It looks to be slightly bigger on the right, but not by much. Initially I thought he just ate a bunch, but when he was still like that after a week or so, he got moved to a 10 gallon hospital tank and started on kanaplex, on suspicion of dropsy. None of the other fish in the tank show any signs of distress.

My tank set up is as fallows. 110 gallon tank with South American cichlids. Currently stocked with 2 oscars, jack, GT, convict (i think that's what it is..), mayan, texas, and a bushy-nose pleco. Has 2 anubias plants that are refusing to die, despite being constantly nipped. The tank is well-established and a new fish has not been introduced in about a year. It is filtered by a Fluval FX6, supplemented by two Aquaclear 110. The filters get cleaned about once a month, staggered between HOBs and the canister. The temperature is set to 27.5 C. I feed almost exclusively Hikari Gold pellets.

So right now, the oscar has been in the HT for 4 days, (meaning 2 water changes and 3 doses of kanaplex), and I can only keep it on kanaplex for 2 more days according to the instructions. I am also supplementing it with a little bit of Epsom salt, 1/4 tsp per 10 gallons. The thing is, other than the big belly, the fish seems absolutely fine. I suspected constipation, but no, there's definitely poop, a whole bunch of it. Eats like a pig, or, errr, oscar. Plays with the rocks and such, to the point where I had to remove my little glass HT thermometer from the tank because I was legitimately afraid it was gonna crack.

So the gist of my question is, can oscars just get fat? Can it be pregnant? (both oscars are around 9", and I saw some behavior that looked like mating earlier, but nothing ever came out of it..). Or is it actually sick, and if so, what am I supposed to do two days from now, when I have to take the fish off kanaplex?

I will try to take a picture tomorrow when I get to the camera.

Thanks in advance, guys.
 
Of course, here are the pictures, as promised. I feed Hikari Gold large pellets almost exclusively. Sometimes treat with insects, bloodworm cubes and such, but that's very rare. I don't adhere to a strict feeding schedule, most of the time they getonce a day or every other day.

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Doesn’t look like much to worry about. If it s eating well and stool looks fine then wouldn’t think twice. Maybe reduce feeding to every other day if still concerned.
 
Is it supposed to go down in size with decreased feeding? The first thing I did when I noticed it was stop feeding for a week, to no noticeable effect.
 
Is it supposed to go down in size with decreased feeding? The first thing I did when I noticed it was stop feeding for a week, to no noticeable effect.
It should go down from a week off of food. Would watch and likely just a beefy Oscar (ref to hot dogs lol).
 
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I would have to agree with Ron at this point. If the fish is acting normal and eating well would hold off the food for a bit or feed very lightly.
Bloat is a big concern (as you know) but it appears that the fish is otherwise acting normally from what you have said.
 
I would have to agree with Ron at this point. If the fish is acting normal and eating well would hold off the food for a bit or feed very lightly.
Bloat is a big concern (as you know) but it appears that the fish is otherwise acting normally from what you have said.
Keep up the frequent water changes and keep an eye on it. I feed mine tetra crisps in addition to pellets. It's their appetizer.
Would be a good light meal. Perhaps every other day until you see what is going on.
 
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