d2mini
Reef enthusiast
dcook, it's a little hard to compare directly.
My previous fixture (seen at the beginning of this thread) was a single mh in the center and two 24" T5 bulbs on each side. That fixture was larger overall than the initial two Radions that I replaced it with. Four 24" T5's cover a pretty large area. I had less spread with the dual Radion setup. Now that I have 3 units, i'm back to where I was before. To really answer your question, you would need to test one Radion against one 250w MH in a reflector, since this is how EcoTech compares the Radion. They say one Radion is good for about 24"x24" or 40 gallons at around 8" above the water surface. If my fixture was mounted over my tank the normal way, rather than at this 45 degree rotation, two units would have sufficed.
My previous fixture (seen at the beginning of this thread) was a single mh in the center and two 24" T5 bulbs on each side. That fixture was larger overall than the initial two Radions that I replaced it with. Four 24" T5's cover a pretty large area. I had less spread with the dual Radion setup. Now that I have 3 units, i'm back to where I was before. To really answer your question, you would need to test one Radion against one 250w MH in a reflector, since this is how EcoTech compares the Radion. They say one Radion is good for about 24"x24" or 40 gallons at around 8" above the water surface. If my fixture was mounted over my tank the normal way, rather than at this 45 degree rotation, two units would have sufficed.