A fly problem

[Plato]

I would like to start by saying I live in Arkansas which is a state in the U.S for those of you in other countries. I only have one cham and he is fine, but there is a problem he did not cause. I used to keep him in a room upstairs until the tiny flies showed up and were all in his room. I cleaned everything out and I though I got rid of them. The larvae were in the cricket cage tubes, in my carrot jar that I feed to the crickets, and in dead crickets. They came back again and this time were only in the dead crickets and in the tubes. So i cleaned it all and got a entirely new set up for the crickets and moved him into a different room on a different story of my house. I LOOKED AND THEY WERE BACK AGAIN. I clean his cage like 2 times a week and clean the cricket cage for every new batch of crickets. Please help me guys, it would be amazing if I could enjoy my herps in peace again and I know you guys have the knowledge when it comes to chams. Also i don't know what type of tiny fly it is, so help with that would be awesome.

Thanks

 

[MelissaB]

Could they be fungus gnats from the soil of a potted plant?

 

[SaintJimmy]

Repot any live plants you have, meaning take them outside, gently shake MOST of the dirt off their roots, get new potting soil, and put them back in the pot.

 

[kinyonga]

Do the flies walk with a jerky motion?

 

[ellbodavis]

Google fruit fly trap.