I got two honey gourami's three days ago in a 20 gallon high community tank with 5 zebra danios. Everything was going great until one of the gouramis today was swimming odd. It went downhill from there, he would flip and just could not swim properly. He was laying on his side and it really looks like he is dying. I took him out for a 10 minute epsom salt bath and then transferred him for another epsom salt bath for 5 minutes with less salt. He is now in a bucket of chlorinated water and is on his side, and looks dead. When I move him a little bit, he tries to swim...but just goes back to his side. All of the other fish are perfect and the water is great I just tested all my params. Is there anything I can do for the little guy...should I euthanize him? Keep him in the bucket with water changes for a few days? Anytime he tries to swim he flips and cannot retain control...what is there to do?