Leo, a quick search on e-bay showed Betaine anhydrous, Reagent 98%, 100g $44.99 in Japan.

Is there a more economical source in the States?

Is 2g per 1/2 tsp about right?


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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).