Just like the post says I'm in the process of researching keeping cold water fish. Specifically, I'd like to keep deep water rock fish. Any reading anyone can send my way? Thinking a yelloweye pair. Pretty familiar with these and had a single specific question. How in the hell do I mimic the deep water these fish live in? I'm gonna start with below 40F and at least a 120, just for the 2. I will have to catch the fish (easy). live prey, like a lion. These live to be 100+ in the wild and have a smaller territory than most others. The concern is that they live in 175' +. Any help would be appreciated. I have lots of spare time, and refuse to use a chiller...more of a challenge. Anyone else get to thinking and do less sleeping?