One of the things that I was the most impressed with was the ability of the Halo light to grow SPS corals. While I admittedly have not tried to grow light intensive Acropora I think the light would be able to handle it since I am currently only running it at 50%.
I have had great success with my forest fire montipora, green goddess birdsnest and a green goblin anacropora. The one that has grown the best is hands down the green goddess and I actually had to frag it the other day because the branches were getting too close to the side of the tank. The polyps are always out and because it is in such a high flow area they look great.
The forest fire montiporas are growing as well, although not quite as quickly. They have great polyp extension and are also encrusting on the rockwork. They were a transplant from my other tank so are well conditioned to reef tank parameters.
My green goblin anacropora is also doing well, although I had to frag off a small piece that was in direct flow and had died. I also have a small piece of goldenrod anacropora but it’s a bit faded and hasn’t really taken off yet. Hopefully it will soon.
The setosa is a relatively new addition and seems to be doing well, although one edge is being stung by one of my torches.
All in all I’ve been really impressed with the ability of this little light to grow SPS corals. I’m not going to try anything more difficult, not because I don’t think the light can handle it but because I’ve never been able to grow acros in any of my tanks! The limiting factor though is me, not the light.