free - lye for gfo recharging (calgary) - Canreef Aquatics Bulletin Board

08-26-2015, 02:00 AM

xerxes300

Junior Member

Join Date: Jan 2013

Location: vancouver, west end

Posts: 23

recharging used GFO

Yes, the sodium hydroxide is Free

- add 40 grams of sodium hydroxide to 1 Liter of freshwater to prepare a 1M solution, then soak ur used GFO for a couple of days, and rinse - ull never need to buy GFO again.

- if u want, for $25, i can prep a 1M solution, in a Lab grade 2.5 Liter bottle
604 779 1085

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