The Fluval Lab Series Nitrate Remover - 150 gram is safe for fish, plants, and invertebrates. It's developed from string-base, anion-exchange resin. This nitrate remover, incidentally, rapidly, and selectively removes nitrate and nitrite for a healthy aquatic environment. Sure not to affect pH or hardness, it is for freshwater use only and can be recharged several times.
For over 30 years, Fluval has built a global reputation for the innovation and dependability of their aquatic products. Having earned the trust of fish hobbyists with durable and convenient products, Fluval’s pioneering spirit has kept them at the forefront through their creativity and technical advancement. Their canister filtration systems provide an efficiency and reliability with an ease of use that can’t be beat. Since introducing their first canister filter in 1982, Fluval has developed a wide product range to meet the needs of their trusting customers.