Best way to put a fish down?
My last female gourami is in bad shape. The male has harassed her almost to death - she has white scars all over her from being bitten and she stays in an upper back corner, breathing air all the time. I think she does try to eat when we feed, but she's really not going to make it in the tank.
I do not have an emergency tank and she can't go in the 20g because I have a male Honey Gourami, and when you mix species, the males can be rough on the females of another kind. That tank is also fully stocked. Don't have any filters to put on a bucket to keep her alive either... and there's no point, since she would get beaten up again if I put her back in the tank later.
I want to make sure that the female isn't going to get a disease from being stressed, and infect the tank. What is the best way to put her out of her misery? I've tried icing a guppy once. (Put ice and really cold water in a cup in the freezer for 5 mins to get it cold, then put the guppy in the cup in the freezer. He was gone in less than a minute - but someone told me that's cruel.... what should I do?)
The male is pooping right now, and it's not stringy, but is white with some brown, so I want to be sure they are not getting a parasite or illness.
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