Amtra Nitrat Reduct 500 ML Synthetic resin, anti algae for freshwater aquariums, reduces nitrates, 2 x 125

ACTION: lowering of the value of Nitrate (NO3) in freshwater aquariums DOSAGE: 250ml to treat 250 liters and 500ml to treat 500 liters of fresh water. Insert inside a filter or directly in the aquarium in an area with strong water current when high values of Nitrate (NO3) are detected. Replace when the NO3 measurement indicates an increase again (approximately every 3-4 months) USE: directly in the aquarium if an excessive concentration of NO3 is detected in order to contrast an uncontrolled and unwelcome algal proliferation. Rinse thoroughly before use BENEFITS: effectively contrasts the growth of algae by eliminating the accumulation of nitrate (NO3) from the water. Values higher than 50 mg/l of Nitrate (NO3) are not recommended FORMAT: 2 X nets of 250 ml each. - 500 ML total