terrapins

I have a 125 gallon with 2 diamondback terrapins, 3 blue acaras, 3 electric blue jacks, 1 pleco and 1 convict. All cohab really well and arent aggressive at all. My terrapins won't eat or chase ANYTHING live and are super docile, we can't even get them to eat bloodworms lol. What we are...