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The first one is filled with the reference gel containing mostly potassium chloride
Rich in raw protein
enhancing oxidation-reduction potential (ORP)
May be employed in silica-limited systems stocked with sponges to improve water quality
Although seawater is mostly sodium chloride it also contains other elements such as magnesium and calcium that change the refractive index slightly and will give a slightly different result
Custom Red Sea Polycarbonate Lid Corals The first one is filledDue to the custom nature of this item production times will vary expect 2 5 weeks depending on size and complexity. This item does not qualify for free shipping. Polycarbonate is the best material for reef lids because it offers the perfect balance of strength, clarity, and durability in a saltwater environment. Unlike acrylic, polycarbonate doesnt bow, crack, or break under heat, humidity, or lighting. It stays structurally solid even under high