Natural sea water contains about 10 mg/L as silicate. In reef or other marine aquaria, silicate should be 1 mg/L or less. Silicate is non-toxic to fish and invertebrates, but is ideally kept below 1 mg/L to minimize diatomaceous algae. In freshwater, silicate is not critical. Usually, freshwater silicate concentrations will range in the area of 4–20 mg/L.

MultiTest Silicate measures silicates to less than 0.5 mg/L in marine or freshwater. This kit measures soluble silicate and reports it as silicate concentration. To convert to silicon, multiply by 0.3. It performs over 75 tests and contains a reference sample for validation.

Features:
MultiTest Silicate performs over 75 tests, and with the multi-cavity test plate, multiple tests can be run at the same time.

Accuracy:
Range:
Measures between 0–25 mg/L silicate.
Precision:
Detectable changes on the color chart in 0.1–1 mg/L & 0.01–0.1 mg/L increments.

Reference Sample:
It isn’t necessary to run a reference test to use this kit; however, its proper performance can be validated by running a test in the normal manner except that the reference sample is used in place of aquarium sample. You might choose to run a reference test if you have cause to believe the test is giving incorrect results.

Color Chart:
All MultiTest test kits come with an easy-to-read color chart. It features a 5 cm viewing window to help isolate color and match as closely as possible to the test sample.

Opaque Multi-Cavity Test Plate:
All MultiTest test kits are read from an opaque white test plate. The sliding color chart along with the six-cavity test plate allows for easy reading and comparisons of several samples at the same time.

MultiTest Silicate Kit Contents:

• Silicate Reagent 1a
• Silicate Reagent 1b
• Silicate Reagent 2
• Silicate Reagent 3
• Silicate Reference
• Stir Rod
• Low Range Cuvette
• Sample Pipette
• Silicate Color Chart
• Multi-Cavity Test Plate
• Instructions