yeah GT may not get quite as personable as an O but for a fish they will still be pretty outgoing, when i had my small pair they would cruise around my tank like they owned the place and were never aggressive to the other cichlids in the tank unless the other fish started something first. they came up to eat and were great, my male and female would have stringy poop sometimes but i never found out what it was because my male jumped but i dont think it was parasites because they had fertile eggs and parasites make fish infertile. and i will say that once my male jumped out of the tank my female lost a lot of color and hid most of the time, i hated it. but when she was with the male both of them were awesome and the male was def my fav fish. i like them better than oscars, i think they look better, still have good personality (though not quite as outgoing as Os) and they stay a more manageable size and aren't as messy