[Floyd R Turbo]

Originally Posted by salty joe

http://www.seafriends.org.nz/oceano/...tm#composition

According to this link, NSW has an iron concentration of 0.0034 ppm. I'd be leery of greatly elevating anything from NSW levels. I'd never dose anything that would not be measured, just my opinion.

IIRC, is it very difficult to maintain any level of measurable iron in a reef system, but I can't recall why this is. It just absorbed into everything very quickly, so it's really hard to overdose. In fact, one person did an experiment to see exactly how much you could dose in one shot before it was detrimental to the system, and it turns out that about 1 gallon added to a 90 gallon system will do a lot of harm to your corals, but won't completely kill them.