I found a very small terrestrial salamander, about 2". I started by feeding it some small crickets, about .5" and unless the crickets have escaped, I think it ate 2 of them so far. I was worried because the crickets seem a little large for the salamander, larger than it's head. So I decided to get some meal worms (also for variety). I put in 4 of them, but they all have seem to disappeared into the sand within minutes. Is the salamander able to find them buried in there? I've never actually seen the salamander dig into the sand. All he seems to do is hide at the top corner of the tank. He is our class pet and I want him to survive as long as possible. What else can I feed it that I can purchase at the store (not a fan of finding my own bugs)? Also, the lid to the tank has small air holes that may be too large for the tiny ant/fruit fly sized insects.