[Delphinus]

VDHD -- hear you LOUD and CLEAR man. Enough time to enjoy the tank when it's up and running ... but that's about it.

As for your lighting, well I think it truly depends on what you want to keep. I think some things will do just fine under those lights. Other things ... maybe not. What are your long-term goals for the tank? Softies? SPS? LPS? Clams? Anemones? The answers to those, and what you see for your tank one year, two years, etc. from now, should dictate the kind of tank management regime to undertake now.