Yes, more questions. I know, I ask a lot of them. I just want to get all the info that I can. So, first off, is coconut fiber substrate a good substrate for all T's? I just want to know if I will be needing any other substrates. Second, how might I heat my T's? It is becoming winter where I live, meaning it is going to get very cold very fast. That is all, and thanks in advance.