Lighting on a grag system


New member
Hey all
I am going to be setting up a frag tank 48x48x12H I also have a chance to get a SWEET deal on a 400 watt halide pendant I was thinking of at least 14-16" clearance from the top of the tank.It will be mostly SPS,do you think it's way overkill?


New member
Even with a great reflector I don't think 1-400w light is going to cut it. Either you would need to raise it up to a point that it would be too far away from the tank or you will have a pretty good ring of dim tank all the way around. I guess if you wanted to keep high light stuff right under the light and low light stuff around the side it "might" work.