I know, i'm gonna add one more instead of the other fish i was thinking about, but i want to wait until i've got health issues worked out. The first one I bought is extremely happy and active. I brought home #2 about 2 weeks later when i realized they were social fish. #2 has greyed out more, and is less active, though of course i start trying to figure him out and he perks up a little. However, his gold is alot paler than #1. I didn't treat them like the parasite article suggests. They are both probably 4", and #1 is really kind to the other one, will even go nudge #2 to try to get it to play. Though i have seen some greying out over food fights.
I feed them all sorts of foods, shrimp pellets, algae wafers, blood worms, bananas (#1 goes CRAZY for them), and peas. I've put cucumber in, but they didn't bother fighting the tiger barbs over it. They also get flakes that fall down from up top.
Thanks for the tips! i am loving these guys. when i get a huge tank, i will definately be stocking several of them.