Are you sure you want the mp40s? I have them and the noise drives me crazy. I've replaced the parts on them a couple times too already. I use Tropic Eden sand and found it to be much better than any CaribSea brand. It is more uniform, clean, white, and I find it heavier by not getting blown around, even on the smaller particles. You'd have to turn down the power on the pump that close to the sand though - maybe not if you used a bigger size, such as ReefFlakes.
Last edited by chatyak; 12-19-2012 at 07:34 PM.
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