Fluval U Series Internal Filters Internal Filters you can ensure that your

you can ensure that your pump operates efficiently and reliably

biotin (Vitamin H)

light wood and dark wood

Use Reef Builder to raise carbonate alkalinity without affecting pH

ensuring your fish are not exposed to harmful chemicals

Fluval U Series Internal Filters Internal Filters you can ensure that yourThe Fluval U series filters offer outstanding 3 stage filtration with Biomax, for increased water quality, movement and vital aeration. These filters are ideal for when external filtration cant be used. Fluval U filters can be used as a primary filter for smaller aquariums or a supplementary filter for larger aquariums. They can be positioned either horizontally or vertically to suit your aquarium. In addition to the position adjustment the Fluval U2,