Although phosphates are necessary for plant growth, only in very small concentrations they are not harmful. ABA PURE PO4 & SiO2 eliminates phosphates and silicates without releasing unwanted substances. Reduces algae growth. Effective in a few days. It must be inserted in the filter or in the sump, with the supplied bag. Rinse with reverse osmosis water. Upon initial contact with water, it may release heat. Its duration depends on the concentration of phosphates. A phosphate test is recommended to determine when to switch ABA PURE PO4 & SIO2. Approximately once a month.

Doses: 100GR per 100 liters of water.

If used regularly 100GR per 200 litres