in a 4 foot by 2 foot.. each fish growing to 8 inches to 10.. the FH *parrot* could grow to 10 PLUS inches.. and you want more? theres not enough space.. having two 8 inch+ BP and one kirin that could grow to 10 inch+ PLUS two bichirs which will grow to a foot.. i would think two BPs and one kirin with two bichirs is enough for a 120......
well in a 265 ( depending on dimensions ) you could do upwards of 8 at most... MAYBE 10 if well filtered and only inhabits of the tank...