Re: Red Light (nocturnal)
Stay with the zoomed or exoterra red bulb it all depends on the side tank your using 30 watt seems a little low. I have a 20 gallon tank with a 75 watt on the hot side keeps it around 90 and i have a 20 long with a 60 watt and keeps the hot side at same around 90 and the cool side on both is in the low 80s
Re: Red Light (nocturnal)
If you're having trouble with heat try using an uth like the ones fro Zoo Med. Just make sure you have a light dimmer, rheostat, or a thermostat attached to it to control temps.