after 1st dose of Kanaplex+GC+focus medicated food

[DTz]

my borbonius anthias has been showing signs of white poop and fin rot for close to a mth, but he has always been active and have really great appetite everyday until my 1st dose of Kanaplex+GC+focus medicated food yesterday. today i notice he's hiding in his own nest and not coming out even when lights on which he always does on a daily basis for a year. is this normal after having medicated food? or should i b worried? other fishes that took the same food r swimming happily today. pls advice

 

[Big G]

The GC is killing the parasites within the fish's digestive system. Sometimes the dead worms constipate the fish. Watch for bulges in the stomach/rectum area. Can dose the tank with plain USP epsom salts. 1 tablespoon per 5 gallons of tank water capacity. If the epsom doesn't get things moving, boiled green peas with the skin removed often does the trick.