Right now I still need little stuff, but I think the nymphs of all the species will be small enough, save for hissers. The sling is eating pinhead cricks, and the little crested can probably eat small, though they may be just a tad big. Not sure how this compares to roaches. As for prey size later, I am sure we will have this crested into adulthood along with the tarantula, but the tarantula is going to grow so slowly it will be on tiny prey for a long time. Other possible additions, especially if/when we get roaches are more cresteds or a beardie.