Colombo NO3 Test Kit Marine Heaters Combines mechanical and biological filtration

Combines mechanical and biological filtration in one unit with K1 Micro media

Pondkeepers wanting reliable

Suitable for aquariums 125 - 200L

Provides alkalinity with integrated ion-balancing elements

and professional-level performance in one stunning marine setup

Colombo NO3 Test Kit Marine Heaters Combines mechanical and biological filtrationColombo Nitrate Test Kit (NO3), is produced from the breakdown of nitrite in the filter. Nitrate is relatively harmless to freshwater fish, but its presence can indicate a deterioration in the aquarium environment, and high nitrate will encourage algal growth. The only way to know what the nitrate level is, is by testing it with a Nitrate test kit. Colombo Nitrate Test Kit contains 40 tests.