any thoughts on keeping one 8inch Hoplarchus Psittacus with two Uaru A. in a 90gal? the uaru are fine in the tank now, but i would like to add the parrot. i have had every thing in the tank with uaru, from tetras to sverums with no issues at all. but im wondering if the Hoplarchus Psittacus will also be fine. are they agressive? i know the tank size is not as big as it should be for 3 big fish. filtration is two fluval 405's and two 40% weekly water changes. i also cant seem to find any info on them online. I have the oppertunity to get one of these fish at a great price, but i thought i should make sure every one will be fine in the tank i have to offer it first. thanks.