Citrus Acid ratio ???

[waxhawreefer]

I bought some of the citrus acid powder to try and clean my powerheads, but I can’t find directions that I found from someone here on R2R, I think it was like 1cup/1 gallon, tired of buying vinegar, thx!!

 

[redfishbluefish]

Search the site with Citric Acid and you get a number of hits. Not sure which one has your info....saw one from Randy that talked about pounds, not cups.

 

[redfishbluefish]

Found this on page 3, #56 of THIS POST:

I use about a half teaspoon to one liter of water. I'm sure the Tunze citric acid has recommended measurements but that's what I use.