Tech M Magnesium supplement is a ionically balanced product which will safely raise the magnesium level in any marine system without upsetting the ionic balance of the system.
Tech M is very concentrated, containing over 70,000 ppm of cationic magnesium, and is nitrate, phosphate and gluconate free!
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Supposedly kills hair algae Review by Bryan
Quality Price Value
So this Kent Tech M is supposed to be the ONLY version of Magnesium that can kill bryopsis or hair algae if brought up to 1800ppm in your tank. Its been almost a week now and I've seen no difference to the pieces I left behind. Worked for many people, hoping it may still have a chance for me..but then again there are hundreds of species of hair algae. Totally worth it if it works for you. (Posted on 3/22/2017)