Wait...green star polyps one of the toughest corals? Far from the truth, it is a beginner coral that turns into a weed.
You are correct that if you want to hold off on corals then you would not require a more expensive light...but I did similar and am kicking myself as I now go about spending the money I should have ontop of what I already invested into it. If you are concerned about the money part, look into LED
. I keep reading more and more about cheap LED
units that have the capacity to supply enough light for SPS
. In Doug's 250 wall build they are talking about them. Should be somewhere around page 98-100. I ended up going the LED
route, but went with Ecotech Radions so I could set everything up with my computer rather than having timers. My first one will arrive next week.