MH bulbs for 24in tank? advice?

[ScubaSteve]

Originally Posted by Myka

Since you're keeping lots of SPS I would suggest the Phoenix because it will have better output than the rest. The XM 20K has really low PAR in comparison. Which 13K bulb are you using now?

+1 on the phoenix! 20k 150W won't give you great growth at that depth IMO. The phoenix actually look more blue than 14K. Again, you're welcome to come take a look at mine. I have the 150W phoenix with the same actinics as you.