ok, in my tank i have the 18" black ghost knife, (and my small fish 3" or less) 1 pearl gorami, 2 ghost catfish, 1 zebra corey catfish, 1 redtailed shark, 1 clown loach, 1 puffer fish, 1 khuli loach, and 3 dwarf gorami's
PH 6.4, amonia .25, nitrite 0, nitrate 40
he looks fine, same as always...