Ok so I fineally find someone local ( in state and driveing distance )and buy 2 baby diamonds 1 1/2 mo-2 mo old. Seller says they have eaten and shed once each. No problem with that. I get them home and the female killed and ate a small peach fuzzy; the male refused food for the moment. Later that night I offered him f/t pinkey and he struck it almost right as I offered then gobbled it down and on to a hunt mode he went. Still acting hungry I went and thawed a small pinky and he repeated the strike eat mode. The problem later to my surprise was that the 2 he ate and the 1/2 digested 5 day old pinky that the previous owner fed him was lying on the news paper. UGH I've never had anything regerg on me. The next day I fed him the twin to what the female successfully ate and kept down; and again 12 hrs later regerged again.
I guess after some dialogue; I'm asking ~ Should I be woried? ~ and if I should ~ what to do?

I gave as much info as I could account for.

Thanx for reading and PLS respond with any advice you feel might assist me.
GREG