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Riverbed Sand is extremely fine and round
Contains natural omega and fatty acids from flax seeds
This lightweight
Low Calorie (Less Than 4 Calories per Treat
Reef Calcium™ is a concentrated (50
ESV Calcium Hydroxide (Kalkwasser Powder) - 400 g Micro & Fry Riverbed Sand is extremely fineCalcium Hydroxide is a proven standard for maintaining calcium concentration and alkalinity in closed marine aquaria. The calcium provided is directly used by calcifying organisms, and the hydroxide ions provided readily convert dissolved CO2 into bicarbonate and carbonate ions, which are also directly used by calcifying organisms. Our product is extremely pure and meets American Water Works Association and Water Chemical Codex requirements.
