Fluval U4 - Internal Filter Air Diffusers EXPERT: After determining the alkalinity

EXPERT: After determining the alkalinity consumption rate

ADA Pollen Glass TYPE-3 has the same diffusing ability as the original and TYPE-2

The functionality of the shape and the compact size are also suitable for confined spaces

Reduces and controls ammonia and nitrite

5 cup per 500 gallons of pond water twice a week for 2 weeks

Fluval U4 - Internal Filter Air Diffusers EXPERT: After determining the alkalinityFeatures Designed for aquariums up to 65 US Gal 150 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 vertically against aquarium wall to create currents or customized flow patterns Convenient flip top lid allows for quick and easy access to filter cartridge for maintenance or