my last batch of angelfish started getting tattered fins than one by one they dropped like flies. i looked in my tank this mrning and my new batch (i've had for about 6 months) is starting to have the same tattered fins the otherones had! what is going on. i posted about this last time and everyone kept saying fin rot it's not. the fins are just disappearing! i have to go to work i'm just gonna raise the temp and hope for the best until i get back.