JBL Silikatex RapidPrevents diatoms by removing silicate. Key Features: Filter material for the removal of silicic acid (silicate) in fresh and marine water to prevent diatoms. Rinse, fill in filter bag (enclosed) and place in filter. Rinse after one to two weeks. Diatoms can form brown unsightly deposits on gravel, decoration material and plants. Silicate content can be checked with silicate test. Result: values below 0. 4 mg L silicate prevent diatoms.
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