Fluval U-Series Aquarium Filters Size:U4 the tube is long enough

the tube is long enough (79inch) and flexible

we prefer not to add any chemicals which could pollute the fish tank

Install batteries with correct polarity

These are growers' choice

reptile UVA and UVB

Fluval U-Series Aquarium Filters Size:U4 the tube is long enoughFluval U2, U3 & U4 Underwater Aquarium Filters 3 Stage Filtration Deliver powerful, multi stage filtration with the Fluval U Series Underwater Aquarium Filter, designed for freshwater and saltwater aquariums as well as reptile and turtle environments. Ideal as a primary filter for smaller tanks or a supplementary filter for larger aquariums, these internal filters provide reliable mechanical, chemical, and biological filtration in one sleek, space