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Hey guys I have a platty who has been constantly opening and closing his mouth for about a week. Eats rarely, usualy hangs around the top of the tank or by plants.
Ph 7.5
Ammonia 0
Nitrate 20 ppm
All the other fish seem to be fine so I don't know :s
I have no idea how old the fish is as I bought him at that size, the tank I have had set up for about 4 months. All my parameters seem normal and all the other fish are behaving normally.
He was swimming around freely about a week ago, as the week progressed it seems he started staying at the top more and more and opening and closing his mouth just about 24/7
Now he is just always there. I fear for this ones life.