For some reason one of my fish decided to go on a killing rampage. First, I notice that one of his tankmates was missing...shortly thereafter I notice him swimming around pushing the other dish around. I remove the dead fish and notice that there is another one that is swimming behind the filter. It was hiding but perfectly fine. 30 minutes later, I notice that he now has another one that he is picking on. I rescue it from the tank, put it in another tank with another peaceful fish and figure that it has maybe a 10% chance of surviving. Not great odds, but hell I have resurrected fish from worse.
I turn around to get a drink and suddenly there is a whole lot of splashing. My peaceful fish decided that the floating injured guy would taste good. Now I figure I have maybe - 2% chance of saving him as he now has a huge bite taken out of his gut. Sure enough...within a few minutes his gills gave out.
So now there is only 1 other fish in that tank with the fish that went psychotic tonight. I am hoping he makes it through the night....if not, my wife wants me to go get one of my favorite species, put him in the same tank, and see who wins. I think thats kind of mean, but this one fish is annoying the crap out of me because its supposed to be a super mellow community fish.
The culprit...a golden gourami. The victims...neon tetras...dither fish which I have had survive full on predatory fish.
My favorite that will go in if he kills anything else.....Heros Labitus aka CichlidaeLabitus aka Cichlosoma Labitus aka Amphilophus labiatum or commonly...a Red Devil. I figure a 2" devil will put the gourami in its place without causing death or being in danger. Anything bigger and the gourami will be dinner.