On the red light issue, I have them in my tank, they are flourescent lights T5, they look awesome and the fish dont notice it and all the nocturnal fish come out. If you use the flourescent though, after about 5 minutes it looks pink, only problem. Now you can also get a weaker actinic 38 watt, not sure of the kelvins, but it is purple. It looks great but if you have an acrylic tank with a black back, it tends to look purplish red. Not very appealing.