Brown Roots & Suds in tub!! Help!

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I was just pricing that cal/ mag additive for hydro...Varies a lot in price. Got a hydro shop nearby?
I hate to answer questions with questions but that is what you need.(cal/ mag additive) ORGANIC hydro.
 
I am at a loss here Cal/ mag is what you need. This whole hydro thing is sensitive. PH has to be considered so you can't just throw some dolomite in the rez.... Do you have PH up and down solution?
 
OK good, the PH Give me a link to the manufacturers page(the ph up and down stuff) and some product info. So i can look them up and see if they are Using calcium or magnesium and hopefully both.
 
You know if the ph is "bad" the uptake of cal is screwed. I believe especially if it up to near 7. I assume you have tested the PH....Lately.
 
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