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It is for highly active water purification with intensive biological decomposition of harmful substances
Magnesium Sulfate
The Aquarium Pharmaceuticals KH (Carbonate Hardness) Test measures KH in German degrees (°dKH)
and a buffer that shoots for 8
Korallen-Zucht ZEOcarbon 1000mL HAGEN It is for highly activeHigh quality activated carbon especially developed for salt water tanks. You will see the difference significantly on your corals. Put it in a mesh bag in a passive flow area. The result is a better polyp extension. It adsorbs toxins, toxic compounds and yellowing compounds and also proteins. Keeps your tank water crystal clear. Use 1 L Korallenzucht activated carbon for 250 gallons 1000L water. Completely replace every 30 days. Dose: 1 mL 25 gallons