When to use?
Use when establishing a new filter, at the beginning of the pond season in spring, or when ammonia or nitrite are elevated. Filter Bugs is an easy-to use liquid formulation, containing a blend of Nitrosomonas, Nitrobacter, Nitrospira and supporting bacterial cultures.These bacteria will repopulate your filter with nitrifying organisms to ensure efficient biological filtration and perfect, stable water quality.
How to use?
Ammonia and nitrite are toxic to fish. Their concentrations should be 0 ppm at all times and can be tested accurately using NT Labs Test Kits. If ammonia and nitrite are present at dangerous concentrations, carry out a partial water change before using Filter Bugs. Ensure the cause of poor water quality is identified (e.g. over-feeding, insufficient aeration, etc) and resolved to avoid causing stress to your fish.
For common frequently asked questions, click here.
250ml, 500ml, 1l
Let us calculate your dosage for you!
To make the process of using our products even easier this handy dosage calculator tells you the amount you will need to put into your system. Please ensure you also read the instructions and warnings that are written on the bottle/pack label.
Note: This calculator does not take into account water displacement such as that caused by substrate, ornaments, water features and plants etc. Therefore, please adjust the calculated volume accordingly.
I know my system's measurements and want to:Calculate my volume
10 ml per 364 litres (80 gallons)
* Always follow the instructions on the label. This calculator is intended to be used only as a guide to how much product you need to buy to treat your system. It does not take account of displacement caused by gravel, rocks and ornaments etc and does not include the volume of any external filtration system. NT Laboratories Ltd. will not accept any responsibility for inaccuracies or misuse of this guide.
Keith Holmes - Koi Waterbarn from Knockholt, Sevenoaks
Koi Water Barn and NT Labs have a long history of working together, we feel that the products in the Koi Care range offer our customers a quality product at a realistic price. This is backed up by extensive research and development that is carried out at the NT Labs HQ located in Kent. They are not far away from our shop at Coolings (Knockholt, near Sevenoaks), this is an added bonus for our customers as they are buying from a local UK based company.