Fluval underwater filters offer three-stage filtration, making them perfect for fresh, marine, or reptile setups. In stage one, the foam catches large particles. Stage two uses a poly/carbon cartridge to trap fine debris, enhancing water clarity and removing impurities. Stage three with BIOMAX ensures top-notch biological filtration. Ideal for aquariums, terrariums, and turtle tanks, these filters can be used as a primary or supplementary option, especially when external filtration isn't feasible. The new sleek design features an easy-grip water control paddle. The redesigned media cartridge traps more debris. You can use it as the main filter for small aquariums or a supplement for large ones. Position it horizontally in shallow or low-water-level tanks or to create a decorative waterfall. Place it vertically against the aquarium wall to generate currents. The convenient flip-top lid allows for quick access to the filter cartridge for maintenance. Made in Italy. Available in models Fluval U1, U2, U3, and U4. Fluval U1 has adjustable flow control and comes with 1 foam pad, suitable for up to 55 L (15 US gal) aquariums with an output of 250 L (65 US gal). Fluval U2 has adjustable 3-way flow control, comes with 2 foam pads, 2 poly/carbon cartridges, and BioMax Biological Rings, suitable for 45 - 110 L (12 - 30 US gal) aquariums with an output of 400 L (105 US gal). Fluval U3 also has adjustable 3-way flow control, the same accessories, and is suitable for 90 - 150 L (24 - 40 US gal) aquariums with an output of 600 L (155 US gal). Fluval U4, with adjustable 3-way flow control and the same accessories, is for 130 - 240 L (36 - 65 US gal) aquariums and has an output of 1000 L (260 US gal).
Using your Fluval U Underwater Filter is a breeze. First, decide on the best position for it. You can place it horizontally in shallow tanks or those with low water levels, or vertically against the aquarium wall. If you want a decorative waterfall effect, the horizontal position is great. For creating currents, go for the vertical one. Once you've chosen the position, install the filter according to the instructions. Make sure all parts are securely in place. When it comes to maintenance, the flip - top lid makes it easy. You can quickly access the filter cartridge. Check the foam pad regularly. If it's full of large particles, it's time to clean or replace it. The poly/carbon cartridge should also be monitored for fine debris. When it gets clogged, replace it to keep the water clear. The BioMax Biological Rings are important for biological filtration, so handle them gently. If you're using the adjustable flow control, adjust it according to the needs of your aquarium. Remember, these filters are suitable for different sizes of aquariums, so make sure you're using the right model for your tank size. And since they're made in Italy, you can expect high - quality performance. Keep these tips in mind, and your Fluval U Underwater Filter will keep your aquarium water clean and healthy.
