my gold kuhli loach has been getting stuk behind the betta keeper where my baby shrimp are and the thermometer. The only thing i can do is get him out. After i get him out he does it again 10 seconds later. What should i do?

Kuhli loaches love to hide and go into small spaces. I've never had any but when I worked at the aquarium store, they would bury themselves in the gravel and try to get stuck inside any ornaments. There's not much you can do but remove things that are dangerous for them to go into or get stuck in, behind, etc.

When I've used a net breeder, sometimes fish get stuck between it and the glass. More often, ADF's would get stuck. Like you said, all I could do was get them out.

Do you think the loach could get out if he wanted to?

it has gotten out and it seems to like it. when ever i save it it goes back.