If it comes to it, ill just move them to an outside pond. Being that I live in Florida, 80f most of the year and sometimes 50f for a month or so in the winter. We'll see. I just love them too much. Plus I'm not a big fan of most catfish at LFS's.
Their color had doubled in the last 2 days. And they're growing quick. I power feed my fish every day a mixture of frozen foods, Extreme pellets, and fresh beef heart from the butcher. Frequent water changes also.