I've only had the ghl online for about 1 month, before that I was testing lots, now only once a week trying to dial in on what is being consumed. The reason I ask the question in comparison to others, is a friend that has a 180 mixed reef on a reactor for 10 years, commented that it seemed like alot to be dosing on my setup for the size of my corals. I did'nt think so because like I said there was no signs of precip on any heat sources. That being said this is my first setup & I am surprised how quickly sps start to get to serious levels of uptake of the supplements. Soon I need more.
But growth = tre' cool
sal 1.026
Ca 420
Alk 7.5
Mg 1350
No3 2