Description FREE Shipping on orders over $35. *in the lower 48 states* Buffer will automatically adjust pH to 8.4 as it increase in Alklinity, carbonate hardness, dKH or KH. For most reef aquariums with a pH of 8.4, the ideal dKH is 9.25 (3.4 mg/L) with a specific gravity of 1.026/33 ppt. at 77F Buffer is available in 3 pound jars, 12 pound pails and 42 pound cartons.
