fish at top of tank

What the title says. I already did a water change and the fish are still wacky. I thought it might be oxygen deprivation bc the co2 was way too high, so I turned it off, but the fish are still there. They are also weirdly unreative to my hand, as I can just put it there and scoop them up with...

Hi everyone, sorry if this isnt the right place to post, I’m looking for some advice. My variatus platy has been avoiding food for 3 weeks now, and prefers to stay at the top of the tank, near the bottom or swimming up and down the sides. When I say avoiding, I mean it literally swims in the...

Hello, everyone -- I had four baby guppies in a five-gallon tank -- three males, one female. As they got bigger and the males got more excited, I got a ten-gallon for my female guppy. I moved her into that tank, and I got a second female and put her in as well. I let the tank cycle, tested the...

I have 2 black mollies & 5 platy fish. Sometimes they just sit at the top & seem to be eating the air. They will do this for a long time & then not go to the top for days it seems. Is this normal?