Without a sand bed, do you still get the shimmering effect from the MH lights? THe foam under my tank is grey and will absorb the light, has anyone tried putting aluminum foil between the foam under the tank and the tank to reflect the light back up?, or would that be too intense? Thanks for all the input 
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Marty
50g reef, bubble king skimmer,20g sump,zeovit system, PM cal reactor
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