Well only one guppy really.
My blue tail male guppy has somehow lost his tail and seems to have trouble floating what's the matter with him? And what can I do about it? He really is on his last leg (eek!).
He was so pretty and now he can't even stay afloat,
He is in a tank with one small blacktail, one yellowtail, one leopard tail and one tiger tail all guppies regular water changes, year old tank, also 4 rasbora who keep to themselves - all seem happy and healthy apart from this fellow
Please see the picture attached