10,000 K and an 420/460 nm actinic T8 combined are a nice hugh of light for a FOWLR tank. It's a nice light to view fish, not enough lighting for coral due to the fact that that type lighting is a thing of the past but will be plenty for fish and you will enjoy the light.
could u tell me the suitable to coral?
Lps or Sps?
12000K or more white light?