- Joined
- Aug 7, 2017
- Messages
- 3,802
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- 6,415
- Location
- Montrose
- What state or country do you live in
- Minnesota
I had a GHA problem awhile ago and the owner of Neptunes' Aquariums in Denver recommended Kents Tech M magnesium additive. Using it and raising Mag to 1500-1600 over a two week time literally dissolved GHA. I read that it's something in their ingredients that kills GHA, not just raising Mag levels.


