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50 Gallons or Less & Complete Kits
Sea Lab SL00128
Sea Lab #28 1 KG Block
SL00128
Your Price: $22.99

Detailed Description

Sea-Lab #28 restores and maintains the concentration of calcium, strontium and all trace elements at the same levels found in the sea, automatically. Formula #28 always works, and cannot be overdosed. This is not a slow-dissolve or time-release product. It dissolves only to replace depleted elements.