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If both the primary water sensor AND the backup optical sensor fail
The SAPPHIRE39 comes with the following accessories for Section 1:
Larger diameter fittings also eliminate clogging – a common issue when dosing various elements like Calcium
incredible spread
ESV AQUARIUM PRODUCTS STRONTIUM CHLORIDE 20% SOLUTION Instant Ocean If both the primary waterStrontium Chloride 20% Solution Strontium Chloride is a highly soluble form of inorganic strontium which makes it ideal for maintaining dissolved strontium levels in your marine aquarium. Like calcium chloride, strontium chloride has the potential to lower alkalinity levels after prolonged use. Our Strontium Chloride Solution is a very pure and concentrated form of strontium, free of phosphates or nitrates. Available in 8 fl. oz., 16 fl. oz., 1 gallon
US$ 222.50
US$ 19.00
US$ 15.00