Hi new to this can anyone help, i have two black moors which was bought about 5 weeks ago all was fine untill one of them was floating on his side, moved him to a new bowl didnt want to contamine other one, now after two days he is just about breathing and when i change the water i have to use my hand to put him in the net as he wont swim at all, i have some gold disease safe which i put some in, but all is not well can anyone suggest anything,
thank you