[Gecko] My Rhaco's eating habits...

[Michael waters]

Okay everyone here's another most likely ignorant question. I place 5 crickets in my sub-adults enclosure...he eats 4. The 5th dies uneaten & larvae/maggots appear due to the fact that I didn't notice the dead hidden beneath moss cricket. Can these hurt my gecko? Just concerned...please help!! Thanks.                                                                                                                                                                     Michael