I have a 30 gallon tank.
pretty new owner so not a lot of fish.
had four gourami (pearl, i think) and two cory catfish.
All was fine for months and now suddenly all of them are on a rapid decline!
I noticed cloudy eyes in one gourami and so I ordered melafix. The next day one gourami was gone and I have a catfish that has been fighting to live for four days.
Their eyes have begun buldging, have small red spots etc. All symptoms listed on Melafix.
Is there anything I should be doing other than the Melafix treatments?
Is there anyway to protect the fish that do not have such extreme symptoms?
