Hi! You might get more of a response if you post more details or try to explain what you are seeing a little more clearly...I will tell you this though - as long as you have plenty of milkweed and space available your caterpillars shouldn't be trying to munch on each other
- How many caterpillars do you have? I'm guessing eight
- How long have you had them?
- What are you rearing them in?
- Where are you rearing them?
- What kind of milkweed are you feeding them? Is it clear they are eating it?