Salifert Silicate Test Kit — Reef-Grade Titration for Marine Aquariums - Salifert

Salifert Silicate Test Kit for reef marine aquariums

The Salifert Silicate Test Kit is a laboratory-grade titration kit that measures silicate (SiO₂) in a reef marine aquarium. Silicate mainly comes from tap water or poorly filtered RO/DI water — a spike triggers a bloom of brown diatoms on sand and glass. This kit lets you validate top-off water quality and confirm a properly functioning RO/DI system.

What this kit brings

• Precision: 0,15 ppm — enough to catch a spike before diatoms take off.
• Range: 0 to 3 ppm SiO₂ with 0.15 ppm precision.
• Number of tests: 30 tests per kit.
• Clean-colour-change titration — no subjective reading.
• Instructions, dosing syringe and test vials included.

How to use

• Rinse the vial with RO water and sample water.
• Draw the sample as per the Salifert procedure.
• Add reagents A and B.
• Titrate drop by drop until the colour turns.
• Read the result on the conversion table.

Specifications

• Parameter: Silicate (SiO₂)
• Measurement range: 0 to 3 ppm SiO₂ with 0.15 ppm precision
• Resolution: 0,15 ppm
• Number of tests: 30 tests per kit
• Method: drop-count titration
• Compatibility: reef and marine aquariums

Why get this test from ReefSolution

• Salifert KH / Alkalinity Test Kit — critical reef parameter to watch alongside.
• Salifert Nitrate Test Kit — track NO₃ after a silicate spike that unbalances the tank.
• Salifert Phosphate Test Kit — phosphate often climbs with silicate.
• Aquaforest Carbon 1 L — activated carbon to capture residue after an anti-diatom treatment.

Frequently asked questions

At what silicate level do brown diatoms appear?

Brown diatoms bloom as soon as silicate rises above 0.5-1 ppm. Reef target is 0 ppm (undetectable), maintained by a healthy RO/DI system.

Where does silicate come from in a reef aquarium?

Mostly from top-off water: unfiltered tap water, worn RO/DI (spent DI resin) or a punctured RO membrane leaking silicate through.

How many tests does the Salifert Silicate kit provide?

30 tests per kit — a typical 6-month to 2-year cycle depending on how often you monitor.