whill85886
New Member
I was just hoping someone could help me clear my confusion on Metal Halide lighting. As far as I understand the kelvin rating, the higher the kelvin, the bluer the light. The bluer light is to simulate deeper water lighting. I am under the impression that the corals and inverts that need MH lighting such as SPS, clams, acropora, etc. are generally in very shallow water which is why they require such a high light, however I always hear about 10k bulbs as the way to go but these are supposed to be deeper water simulation. Is a 5500-6500 K bulb sufficient? Can someone please clarify. Thank you.