This summer, I've been thinking about trying a few different food sources for some of my larger anurans. I've heard that roaches would be a good source, and I've heard of lobsters, hissers, etc. Which one(s) would work out the best? I've got larger Phyllomedusas that these would be fed to. At the zoo where I volunteer, they have hissers, but they are enormous and the rear legs are very spiney, could this be a problem? Do nymphs have spiney legs? Also, any care information on them is great appreciated. I found some very tight fitting screen lids at the local pet store, I use thme for crickets and they work well. I often find crickets climbing upside down on the screen, meaning there's no escape route. For roaches, I've heard that vaseline is good to prevent them form climbing? Any and all input is appreciated.