Quote:
Originally Posted by DJKoop
When I was planning on using the plenum way I was going to have a 3" bed using Caribsea Seafloor Special Grade Sand. 1-1.7 mm diameter grain. According to them
"This grade of aragonite is specifically engineered for plenum type nitrate reducing beds.
The pore water space created by precision grading also allows maximum pH support and dissolution of calcium carbonate."
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Before you make any sort of commitment, I'd ask around on RC and check how many people have long-term success with plenums in a reef tank.
On the other hand, if you're set on plenums, then you're set.
