2.6 Under Gravel Filters (UGF)
Description
This article is from the ReefKeepers FAQ, by several authors (see the Credits section).
2.6 Under Gravel Filters (UGF)
Not appropriate for a Reef Tank. Although they will work for 6
months or so, eventually detritus buildup will cause a nitrate
problem. Long term, it's virtually impossible to keep nitrates
below about 40 ppm NO3- which is way too high for corals.
Continue to:
My Books
