Well what are his temperatures? This can be a big factor in how much they eat. For instance during feeding times I just leave the roach bin in the cage and they will jump in, eat as much as they can (averages about 30 or so each) then they bask for a half hour or so and hen back into the food bin they go. Another factor is I am feeding only newborn roaches...well I fed ones smaller than 1/4in not sure how old those are but they are the smallest I could find. Also they are both going through a growth spurt it seems as they are shedding everywhere. I rearranged the cage a bit as the basking area was a bit hot so I wanted something lower and not as bulky. Also on the PVC branch I thought I had 3/4 in pipe so those are the fittings I bought but turns out I had 1in pipe so that project has been postponed.