Raw shrimp to get the spikes out?????
I can't even begin to express what alls wrong with that statement....
Fish or fishless cycle????
Anyway. allow three to four days for a new RTC to settle in. Provide several hiding places and don't expect to see the little guy very often for a while.
feed him/her AT NIGHT with the lights off. They DON'T enjoy having people around while they eat.