I have a long thread going on RC-lighting about this. I agree get the right equipment. But you have to remember, once it wasn't "possible" to keep corals in captivity. And then it wasn't possible to keep SPS in captivity. These were reponses in the past, but poeple tried new things and the effect is we can do these things now. These type of trials also led to better alternatives in many areas.
I am not going to try this on my main display, I have VHO there now and plan on adding, dare I say it, MH later this summer on the 90 I have from Ryan.
I am really not trying to save money here, I am sure it won't save money. I am just curious if it will work? I don't think this is the same issue as the power heads. They are a cheap alternative. This just may be an alternative.
So far from poeple that have actually tried this I have success stories. including SPS. And believe me I have invested a TON of money in livestock over the years. Again this would be a side tank test if I even try it. I know several people have the opinoin you shouldn't keep SPS corals with VHO's. I know this personally to b false, I am doing it. Ture maybe 2 years down the road it will fail on me. I sure have read about a bunch of people being very successful with it. So maybe these little lights can be successful as well. LED's will be the future anyway.
The other big issue here is I am learning about light. Hopefully some others will as well.
