Lighting calculations

[daddy01]

thanks to all that replied, I will just do a wait and see approach, I have a 30X12X21" tank with 25-30lbs live rock and been running since august. It was a FOWL tank but I decided to try some mushrooms Bought a Frogspawn and a Rocordia Yuma and an aqualight with 130W rating but that was the Daylight flourescent and the Actnic, so I had a T5 and put 2-Actnic in T5 and 2 65W daylight in the Aqualight fixture..hope this is sufficinet for mushrooms and softies. The tank is 21" deep but I have 2.5" substrate.
Jim

[WWWD]

Mushrooms yes, frogspawn, maybe might loose some colour. Ricordia, no way, they love light and lots of it.

[Synthesis]

I would recommend Metal Halide for ricordia. They just seem to do much much better in bright light. I would move the yuma as high up in the tank as possible and see how it does.

Otherwise your light setup should be fine for mushrooms and leathers.