The loach are going into my 450. Currently in that tank i have 4 severums, 6 satanoperca, 4 bichirs, black arowana, 2 rticulated stingrays, 1 chocolate cichlid, 1 true parrot cichlid and some port cichlid. I'll see if this works, if it doesn't I'll have to put them in the 260 gallon tank I'm setting up