Using HO, T-5 bulbs currently. My sps corals seems to be doing fine so far. However my new cube is designed to be lit by a single halide and I figure on a 250w. Thinking about HQI pendant, {cough,cough}, but may just go with the normal 250w PFO ballast from JL and a 250w SA 10K bulb. It had the highest rating behind Iwasaki, in recent tests and I,ve already used their 14K bulbs.
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Doug
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