Do they have a parasite? if so which one and how do I treat it?
65g tank two fish with symptoms of red worms coming out of a swollen anus, empty belly but still eats. Tank mates,3 otos, 5 bronze Cory's, 5 Glowlight tetra, 6 cardinal tetra, lots of pond snail many plants. One ram has been in the tank for 7 months while the other has been in there for a month.
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