i have my tank still up and then thers 4 D PULCHERS ATF and TANGANIKYAN PERCH and 3BALA SHARKS. all around 2-4 inches so i was thinkin of throwin in a 3 inch jardini. cuz i had a 4 inch one be4 but i traded it. and i know this is test and trial but then u think i have enough fish for it to be calm in the tank? and this is in a 100 gal