Help! My Silver Dollar is fat!!🐠🧐

[DArtist]

I am new here, and I need help. One of my silver dollars started looking "fat". In the belly region. It is also breathing fast and finning a lot. I have had the silvers for 5 years and have successfully battled ich and other water quality issues. I have 3 silvers that share a 60-gallon tank with 3 albino Cory Cats, 2 plecostimus, and 3 Neon tetras. Also, some Assassin snails. I have had the silvers for six years and this current tank setup for two years.
Two weeks ago I changed their feed, adding dried blood worms to their tropical crisps and tiny fish food (for the neons). They get spinach every other day and bloodworms once a week.
I noticed this issue 3 days ago. Two days ago, I fed all the fish in the tank with mushed peas and brine shrimp only, thinking it might be constipation. I also tested the water and ammonia levels. All is ok there.
Yesterday I changed the QT tank water and tested it. I gave the sick silver an epsom salts bath for 30 minutes, then put him in the refreshed QT tank. No resulting poop and no change in distended belly.
My question: do I try another epsom salt bath tonight or go to Aquarium salts in the QT tank? Or?
Thanks for any help you may have.

 

[MaloK]

Keep him in QT

If you think it's constipation for real. Epsom salt will just amplify the problem. Epsom salt should be used for liquid swelling like dropsy only.

Never for constipation as it will drain fluids from the fish and leave a very difficult to push digestive trail.

Leave him in QT water without food for a week.

Keep everything dark the whole time.

At his age it could be organs failing and his death is inevitable. But at the point you are. make him at home as much as possible.

While these fish lives 10 years in nature. They have not always that chance in captivity.

 

[Innesfan]

If he is still eating, I'd cut the freeze-dried bloodworms from the diet which have a nasty track record of causing constipation and bloat. And I'd feed live or frozen daphnia, which can have the opposite, positive effect on the system.

 

[DArtist]

Thanks, I didn't know dried bloodworms created constipation. I will get daphnia tomorrow. Appreciate your suggestion.