Fluval U3 internal filter CO2 A complete 2 Part dosing

A complete 2 Part dosing system

Formaldehyde or Formalin

1 ml of Cobalt Zlement increases the Cobalt concentration of 100 litres by 2 μg/l

High quality foam media

1 ml of Vanadium Zlement increases the Vanadium concentration of 100 litres by 6 μg/l

Fluval U3 internal filter CO2 A complete 2 Part dosingOffering outstanding 3 stage filtration, increased water movement and vital aeration, Fluval U Series internal filters are the perfect solution where external filtration is not possible. Features Designed for aquariums up to 110 L Use as a primary filter for smaller aquariums, or supplementary filter for larger aquariums Position horizontally for shallow tanks, larger tanks with low water levels, or to create a decorative waterfall feature Position