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Could I keep a clam with a 4x24 watt t5ho. The sand bed is 20 inches from the fixture. The fixture also has individual reflectors for each bulb. I would think I could keep one without a problem.
carey has a maxima clam in her 20g under a 4x24watt t5ho with ATI lamps and i don't think she has any issues keeping it. even at 20"s away that setup of lamps should be giving her about 200 PAR. at 30" mr.X is gettign 108 with 4 ATI lamps
the corallife lamps aren't the greatest but you could try a clam but if it looks like its not doing well you can always move it higher up on a rock or something