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rinse well
After 2-3 drops you will get solution with blue color:
A proper monitoring and control system for your aquarium solves both these problems
under Alpha Class of The Color Series
GHL KH Director - White
Aquavitro Mineralize 350mL coral food rinse wellBlend of divalent salts designed to restore or increase general hardness. Standard dose raises GH by 1 meq L (2. 8 dGH) General hardness is the divalent metal cation content of the water. In most water this is comprised primarily of calcium and magnesium. Soft water has a low concentration of dissolved divalent cations, hard water a high concentration. The native environment of some plants (Cryptocoryne, Aponogeton, etc.) is soft, whereas others
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