These mineral-rich stones, often used in Chinese medicine, consist of plagioclase feldspar, orthoclase feldspar, hornblende, biotite and other various silicates and minerals. When used in an aquarium fish tank filter or koi pond filter, Maifan stones absorb pollutants odours and dyes that may be present in your water.
Maifan stones contain plentiful amounts of micronutrients including calcium, iron, zinc, magnesium, copper and selenium. These minerals support the natural balance of your fish tank / pond inhabitants and levels out pH (will raise PH to slight alkaline).
1x 800g package is sufficient for about 1000 m³ water (1000 Liter) and should be replaced at regular intervals. Safe for use with tropical freshwater and marine fish tanks. Safe for use in tropical freshwater tanks and fish-only marine aquariums (not recommended for use with invertebrates or corals).
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