What size external filter do I need for my fish tank?
The rule of thumb is that all the water in your tank should pass through the filter at least four times each hour. That makes it pretty easy to calculate what you need. When it’s borderline, always move to a higher flow rate. For example, a thirty-gallon tank requires a flow rate of at least 120 gallons per hour (gph).
Are external aquarium filters better?
External filters are larger and more powerful than most internal filters and can hold a lot more media, offering better cleaning and supporting more fish. The superior power of external filters makes them suitable for large aquaria; heavily stocked aquaria like African cichlid tanks; and large fish.
What size tank needs a canister filter?
Canister filters are usually used on larger aquariums or by advanced hobbyists, although they are also well-suited to the average 20 gallon aquarium. They can be loaded with whatever media you choose, and hold much more media than comparable HOB’s.
Which external filter is best?
Best Aquarium Canister Filters Reviewed
- Fluval External 07 Canister Filter Series (Top Pick)
- Fluval External 206 Canister Filter Series.
- EHEIM Classic External Canister Filter.
- SunSun Pro Canister Filter Kit.
- Fluval FX6 Canister Filter.
- Hydor Professional External Canister Filter.
What is the most efficient aquarium filter?
Best aquarium filter comparison table
| Our rating | Type | For tank |
|---|---|---|
| Tetra Whisper 20 Power Filter #ad | Hang-On-Back | 10-20 Gal |
| MarineLand Penguin 350 BIO-Wheel Power Filter #ad | Hang-On-Back | 50-70 Gal |
| Fluval U4 Underwater Filter #ad | internal filter | 34-65 Gal |
| Penn Plax Cascade Black 1000 Elite Canister Filter #ad | canister filter | up to 100 Gal |
What are external fish tank filters used for?
External fish tank filters, or canister filters, are an ideal solution for customers maintaining a large aquarium where a strong water current and high level of filtration is necessary.
What is an internal power filter in an aquarium?
The most basic and widely sold are internal power filters, which have a small water pump on top of a narrow box containing a sponge. These sit within the aquarium. You might also see the more old-fashioned undergravel filters in budget tanks, or external power filters in the more sophisticated models. How does an internal filter work?
What to look for when buying an internal aquarium filter?
If you’re buying an internal filter, always look for one with lots of filter media inside. The more media, the more effective and efficient it is going to be. Internal filters are, however, cheap, easy to install and maintain, and perfectly adequate on small, lightly stocked tanks.
How does an external water filter work?
Water is sucked out of the tank and enters the filter, where it is cleaned and then pumped back up to the tank. External filters have much more media inside them than internal filters, so they tend not to need cleaning quite as often.
