I got a Crested Gecko on March 15th, his name is Mr.G, and have put baby food and crickets in his enclosure and the baby food never seems to be touched unless I put some on my finger I put 2-3 crickets in only at night, and the problem is some of them seem to escape so i cant tell if he ate them or not.........he has pooped once that i've seen.......it would be great if someone could give me some advice

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1 Crested Gecko 1 Beagle 2 Oscars 1 Clown Knife
And over 40 other fish