Hi all, I brought a sailfin about a month or so ago and he has been eating well swimming freely and generally good health. Yesterday I noticed he wasnt swimming around and had started to lay on the bottom of the tank behind the rocks he has stopped eating and is swimming upside down and on his side. He has dame to one of his fins are the other fin looks like it's flaking away. He must be bad as I managed to catch him in a net first attempt without any issues. Please if someone could help me I'd really appreciate it