Sera Siporax Bio Active Professional Naturals Zen Garden they are considered semi-aggressive solely

they are considered semi-aggressive solely based on the fact that they will eat any fish or invertebrate that can fit in their mouth and are actually quite passive otherwise

and is suitable for freshwater use only

and time released iodide for sustained availability to invertebrates

Br – 60-70 mg/l

Starting with the pad closest to your hand

Sera Siporax Bio Active Professional Naturals Zen Garden they are considered semi-aggressive solelyThe revolution in water conditioning The unique dry water conditioner combines stabilizing biological filtration with effective and quick pollutant removal of water conditioning. Pollutant utilizing bacteria remove pollutants such as ammonium and nitrite from the water already shortly after the first contact with water. Sludge is decomposed faster, and thus a critical pollutant reservoir is quickly rendered harmless. The biological equilibrium is