TetraAqua NitrateMinus - available in 100ml bottle

For the long-term reduction and control of nitrate, leading to better water quality and less algae

• Harnasses natural process of biological denitrification
• Simply add to aquarium once a week - no need for resins that have to be replaced or recharged
• Maintains nitrate level below 30-40mg/l or less (in an average aquarium)
• Helps control algae growth
• Produces no harmful by-products and is completely safe

Application

Add 2.5ml of NitrateMinus per 10 litres of aquarium water, on a weekly basis. Dose rate can be doubled for additional nitrate control. Depending on the starting concentration of nitrate in the aquarium, it can take a few weeks to reach the desired level. Once achieved, levels will remain low.

(Source: http://www.tetra-fish.co.uk)