Originally Posted by
tnguy161
Hi all,
I'm currently running a 75 gallon tank in which one of the discus is showing symptoms of Hex (white poo, no eating) but the other ones are fine. But I'm moving them to a completely new tank set up (a smaller one since I'm getting some big ones for the 75) and wondering what should I do to the tank? Did the sick discus possibly contaminate the water and filter? So should I drain the entire tank and clean up the filters to get it back to healthy condition for new fish?