Quote:
Originally Posted by ScubaSteve
Advice on trace mineral additives: don't bother, save your money. They are trace, as in barely there. In huge tanks, okey maybe they can be useful there. But in smaller tanks your water change will suffice. Just my opinion.
For calcium, alk and magnesium additives I've had good luck with randy's 2 part additive. Best part... it's super cheap!
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What is "Randy's two part additive"? is it a DIY mix? or available in stores?