| Re: bulb for macro If you're stuck on the watt/gal thumbrule (which is misleading at best IMO), then yes, you would have 100W over your tank. Typically the W/Gal thumbrule is truly refering to the lumen of the bulb (since W and lumen are usually proportional within a certain type of bulb).
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Isaiah 6:8
I once prayed God would grant me patience. The next day I was starting a reef aquarium. My Confession |