I use to feed mine in seperate containers and pick them up right after feeding. I have also handled about 12 hours after feeding several times when they use to knock over their water dishes. Now Im not saying its the best for them by no means, but didnt harm them any. I now feed in their tubs and let them sit between 24-48 hours before I mess with them. That is better for them to try to wait the 48 hours if possiable.