Rip

Recipes 

So um...what's in that bottle of DeChlor beside the Na2S2O3? That's the only point I wanted to make. All kinds of crap could be contaminating the thiosulfate compound and nobody would care, especially the fish. Well, I guess the dude that grows a 3rd eye and 23 extra testicles might care. lol.
Won't be me.

- M

SnidelyWhiplash

Recipes 

aquarium stuff is not going to be regulated to be food grade, so it can contain anything else as long as they don't think it hurts fish enough to be noticeable. Also I wouldn't want to be directly drinking EDTA all the time. it's shown toxicity in animal tests. a bag of K meta is really cheap.

I bet recommendations to let K meta sit in the water for a day first stem from the use to "sanitize" grape juice before adding yeast. you add a very high level to inhibit anything already in the juice, and let the SO2 degass to reasonable level for yeast before pitching