KJAhp098
New member
Trying to decide between a 400 watt or 250 watt Radium bulb with a Lumatek select-a-watt ballast for my 36"x36"x27" Marineland tank. I'm using a Lumenbright Mini reflector and will be using 2-24" VHO bulbs to supplement. The rock is about 20"-22" from the bulb. I'll be keeping only SPS corals.