Two Little Fishies ATLCB4B C-Balance, 1 Gallon

C-balance is an excellent product from a trusted hobbyist turned vendor Julian Sprung, this is also the best price available anywhere.

One of the best 2 part additives available. Not too overpriced, but still includes some extra stuff besides pure sodium bicarbonate and calcium chloride. Also includes magnesium, of course. Which is nice, but so do most (if not all) commercial 2 part systems.

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