woodworker1959
New member
I am setting up a 40 gallon tank which will be in parallel with my main system. The purpose is an area for frags to grow without alot of other interference. I was trying to see what would it be better to light the tank which will be on the shallow side. it's a 36 by 18. I have a five inch sandbed and on top of that I have setup a frag platform with eggcrate and PVC. So the bottom of the egg crate lowest shelf is about 10" from water surface and upper shelf is 5" from water surface. I am considering going metal halide 175W. or a 4 bulb T-5 HO setup. If I went with the MH I think I would need two bulb setups not sure if something like a lumenrc could cast the 36" width. Or if the T-5 HO would be intense enough. Just looking for someother opinions.