sera toxivec is a toxin remover that takes immediate effect. Reliably removes ammonium, chlorine, chloramine & nitrite. Prevents algae growth & reduces how often you have to change the water. sera toxivec at a glance: Prevents algae growth Binds heavy metals Reliably removes ammonium & nitrites Reliably removes chlorine & chloramine Reduces how often you need to change the water Protects fish's skin Stabilises the carbonate hardness & p H balance Brings down high nitrate values Dosage guidelines: Mix 5ml of sera toxivec with 20 litres of water when stocking fish & after cleaning the filter. 1 to 5 doses in plant-free freshwater aquariums can be administered in cases of highly contaminated water. sera toxivec cannot be absorbed by plants with few leaves. Sera Toxivec is suitable for the removal of blue methylene, green malachite oxalate & potassium permanganate. Store at room temperature (15 – 25 °C) & keep out of reach of children & pets.