i have had one for about 2 months now. sadly a pleco almost killed him
. it had eatin its tail and 1/4 of its body to bone. i have healled all but the tail is still cuming along. i had to move him to my 20gallon to heal. i want to put it in my 75 gallon with a jardini arowana, ornate birchir, african knives, and a black nasty. will he harm these guys. also i have been feeding him silversides and night crawlers. is there a heathyer food out there.