I have had this platy for about 9 months recently it has gotten really skinny. It is about as wide as the width of two quarters. It eats all the time and still cannot put on any weight. Its poo is aslo kinda pale colored. Could it be a parasite? The fish was moved 2 months ago from my 10 to my 55(It was all beat up when i moved him,nipped fins) The fish aslo kinda snakes its way through the water and doesnt use his fins. All my other fish are fine icluding other platy. What is wrong? And how do I treat?
Her spine became horribly crooked for some reason too. We bought her a couple platy friends with her same coloration and within a few weeks she started gaining weight again.. spine straightened out miraculously too, and she was back to normal within a couple months. I would say you could try giving your platy a friend, but if it's not a matter of loneliness.. it may spread whatever it has to the other platies..