103-0212 250ml
103-021 500ml
103-0211 5,000ml

A constant supplement of Potassium, which in most cases is insufficient in the aquarium, is important to realize a balance of necessary nutrients for aquatic plants to grow. The other two of the three basic nutrients, Nitrogen and Phosphorous are often produced in abundance within a planted aquarium. Regular dosage of Brighty K at water change, is also effective in neutralizing chlorine in tap water.