MH
MH
If your going to have any other corals besides Acro. such as some LPS I believe a 20k would be a good choice. It offers you the option to keep a wider range of corals. I started with 6500K Iwasakis and had great growth but the colors were poor. Even with 14K Hamiltons I noticed that a friend with 20K had much better coral colors with slightly less growth. Thats teh trade off with some lighting choices. IMO alot of the corals we buy come from deeper water where the light doesnt penetrate as much as we think. But I am not an expert-just trying to share some experience.
MH
If your going to have any other corals besides Acro. such as some LPS I believe a 20k would be a good choice. It offers you the option to keep a wider range of corals. I started with 6500K Iwasakis and had great growth but the colors were poor. Even with 14K Hamiltons I noticed that a friend with 20K had much better coral colors with slightly less growth. Thats teh trade off with some lighting choices. IMO alot of the corals we buy come from deeper water where the light doesnt penetrate as much as we think. But I am not an expert-just trying to share some experience.