clark clown fish with a bloated stumich, what do i need to do now, one of my power heads, seio m11oo , the suckers came loose and as you can imagene, everything in the tank was caios, did a 50 liter water change every thing back to normal, water par are normal to, then 2 days later , my clown fish got a big stumich, all the other fish are ok.
please help