So this Saturday i'm going to pick up my baby red sided from Rhea very happy about that but a bit concerned about , my tank. So its pretty warm in my house the thermometer for my tank says 79F without a lamp so I guess a lamp really isn't needed , but don't I need a cool and warm side ? if the whole tank is 79F then how would this work. Also don't they need lighting as well not a lot of natural sunlight comes into my room so i'm worried about one side being to hot. What should I do ?