Picked up my new hoplos..ordered 5, one looked like he had been kicked in midsection and had broken back with sunken belly. Took other four, guess I didn't examine very well(know I didn't). About 24 hours later, one looks startling similar to rejected one, two others not acting like catfish..hanging between glass and heater an inch away from surface. One seems pretty comfortable and good. I'm at work now..be home in about three hours,.. thinking to separate 2 sicker ones but not sure how to treat. Told catfish very sensitive to medicines,..what about kanamycin, or quickcure?