Unkept, all advice is wanted for me. The more people that say it the more that I believe it when they back each other up. That and sometimes something will not work for me that will for others and having options to try is always a good thing. Fruit flies taught me this, adding active yeast crashed my cultures after just 2 weeks. I use brewers yeast now and have never had more production form longer lasting cultures.

I figure that my frogs will eat the roaches up to about 3/4 inch at most. Once a crickets gets an ovipositor longer than about 1/8 inch they are pretty much too big for all except my largest frog. I think the hard part may be finding what to do with the extra adults when I don't feed off enough at a small enough size. Good problem to have I would think.

I will see how big the heat pad is and decide how I will try and heat the bins. Might leave a cool side for food and water with crates on the heated side in both.

What is the smallest bin you would say would work for my needs? I have two 24 quart ones I was thinking of using. Really straight up ad down walls with good flat lids and easy to modify for mesh. I can put them in a larger bin to keep them contained. Do you think that a second bin will ruin a temperature gradient and make the entire smaller bins an equal temperature or is this unlikely?