I came home just now and saw my harlequin stuck on the bottom of the filter hose. I put him into a tuperware container. He's still alive, but barely moving and attempts to swim every once in a while. What do i do?
Also, i just added 5 zebra danios and 5 harlequins in a 10 gallon tank yesterday. They're the only fish i have in it and will have. I wonder if the zebras killed the fish or if the filter sucked him and caused the damage.
filters arent usually strong enough to suck in a healthy fish
IME the only time fish get stuck to the filter i if they are already sick and not strong enough to swim away
have you noticed any imjuries/symptoms on the harlequin? also, if you're not already, you might want to float the tupperware container in the main tank to keep him warm.
it's possible the zebras harrassed it to death as they can be aggressive - watch them and see if they look like they'e being aggressive towartds the others.
I'm afraid I don't know what you can do for him at the moment