[Coral-List] NH4 conc. in aquarium water

Angus Macdonald angus at ori.org.za
Fri Dec 23 03:58:18 EST 2005



A lot has been published about optimal NH4 concentration in aquaria in which
coral is propagated. 20 ppm seems to be about right. Is this in the right
ballpark and does it become toxic to hard or soft corals at higher





Angus Macdonald


Oceanographic Research Institute

uShaka Marine World

Point Road


(031) 328 8168


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