Brooklands Oyster Grit
Crushed oyster shell is essential for raising the water hardness in aquariums. The shell grit may be used in aquariums over short periods to alter the hardness to a level where a buffer can be used.
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Crushed oyster shell is essential for raising the water hardness in aquariums. The shell grit may be used in aquariums over short periods to alter the hardness to a level where a buffer can be used.