Planted Tank Guru
Join Date: Nov 2009
Location: Missouri united states
What are water parameter's ?
In African tank,I would expect to see fishes with varying degree's of fin damage from territorial disputes, and or dominant fishes letting subdominant fish know who the boss is.
Hollow belly could indeed be intestinal parasite.
Assuming the fish is still eating,, I might consider mixing equal amount of fish food and anti-parasite med ,and making a kind of paste .
Can then freeze the paste, and offer this as only food for next week or two.(break off small chunk's)
Work's well for larger cichlid's I have kept (assuming they were still eating) and requires sometimes not offering food for a few day's before treatment and only feeding the medicated food.
This method also work's with antibiotic's and it is believed by many, to be more effective than treating the water.
With this method ,the fish ingest's the medication along with favorite food, and no need to re-dose water after perhap's twice weekly water changes for a while.