I have altogether five platys and they are all male. I have found that male platys are very aggressive and therefore i have to split them up into several tanks. One is kept on his own as he is the least aggressive. He is so unhappy. His fins are always clamped and he won't eat. He either hides or stays in the top right corner. what shall i do? All my other fish are fine.
PH 7.4, Quite hard, nitrite 0, nitrate 25
PH 7.4, Quite hard, nitrite 0, nitrate 25