Cannibalism in leopard geckos isn't unusual. Housing unequal sized geckos together could spell disaster, even if they're all well fed.
Leopard geckos are known to eat smaller lizards, maybe not often, but they will occasionally take advantage of an opportunity to change the menu a bit.
This link goes to a cached Google copy of a .PDF, you don't have to download it, just view it online.
If you're the least bit squeamish, don't look at the pictures on page #2, reading the text on page #1 will give you the full idea of what can happen.
http://www.herpetologynotes.seh-her...al_Herpetology_Notes_Volume4_pages211-212.pdf
Leopard geckos are known to eat smaller lizards, maybe not often, but they will occasionally take advantage of an opportunity to change the menu a bit.
This link goes to a cached Google copy of a .PDF, you don't have to download it, just view it online.
If you're the least bit squeamish, don't look at the pictures on page #2, reading the text on page #1 will give you the full idea of what can happen.
http://www.herpetologynotes.seh-her...al_Herpetology_Notes_Volume4_pages211-212.pdf