i personally feed them every other day, take in account the size of their little stomachs and its as much as they will hunt and eat in 5 mintues or so....usally the two are good with half a cube of frozen blood worms, or 15 or so HBH pellets...i havnt given them much else and they have been with me for a few years now....i look for not eaten food when it looks like they are full and in zen pose.... hope this helps......there are some great care sheets about them kicking around this forum and other places....