I have 2 gulper catfish with little wart like bumps on there bellies, sides, and backs. Getting into detail I have them in a 55 gallon aquarium, decorations are mopani wood, petrified wood, slate, and your typical mineral based fine gravel. Plants are java moss and micro sword. Filtration is an emporer 400 , emperor 280 and also an aquaclear 50 powerhead. The tank has been up and running for 4 months with 3 spotted rapheals and 1 clown pleco. My gulpers arrived to me 2 weeks ago after spending 3 days in a box, thanx usps, guranteed overnight I thought, I'll never use them again, but anyways the gulpers made it alive but definatly not happy, ammo levels were sky high and the ph bottomed out to where my kit couldn't read it . I spent the next 3 hours acclimating the gulpers to my water which is neutral and and all other paramaters where good, the gulpers were fine for a few days and then became lethargic during the days after a week, they ate feeders from my hand but wouldn't eat the free swimming feeders they would try to eat the raphaels but definatly didn't like there texture so they spit them out. Then comes yesterday, bi weekly cleaning time, I'm checking my gulpers out and notice they have little wart like bumps on them and some have white spots on them and noticed a white spot on some of the fins, so I checked my water and ammonia was high and nitrates were high, I vacuumed and did a 50 percent water change and put the clown pleco and spotted rapheals in another tank, those are some nasty little fish, anyways my water parameters were back to normal and I treated the tank with a half dose api ick cure, a small amount of aquarium salt and raised temp from 81 to 84 shut the lights out and let the fish enjoy there night. I woke up this morning and noticed the fish were more active and swiiming in the powerhead current they look cured in the sunlight shining into the tank and when I turned the light on they they looked good, then hafter 10 minutes of lighting a few of the bumps seemed to show up ....