Tsunami;350584 wrote: Is 3 150 watt metal halide bulbs enough to get nice growth on LPS on the bottom of a 125 gallon (20 inches high) fish tank? Thanks for your thoughts.
I've done the T5s and I'm not impressed. I did it for a year after my MHs before and the color just wasn't as good. I love metal, I just don't want to go in under powered. However, heat is a big deal. It maybe time for a good chiller again.
I used to run 150 de mh's on a tank that was 20" (actually 19" to surface because of the sand) and was able to grow sps,clams and actually too much gsp! I don't think you'll have any issues...