what's the impact of high magnesium levels on a reef? I'm currently fighting bryopsis and have read the best treatment is high magnesium levels with Kent Tech M. unfortunately my magnesium test kit only goes up to 1500, so anything above that I can't test or monitor.
If you get to 1500 with a salifert, refill the syringe, continue testing until your color turns, look up the result and add it to 1500.
I've massively overdosed Mg twice now, and have just let it come down from around 1600 to a normal reading.
I haven't had luck with it killing bryopsis. There is speciulation that an impurity in the Kent TechM mag supplement is what kill bryopsis. I've had luck letting hungry turbo snails eat it.