hygger Aquarium Small Internal Filter

1 customer review
5.00 out of 5 based on 1 customer rating


Internal filter for small fish tank 0.5-20 gallons, provides mechanical and biological filtration to help keep the water clear in freshwater and saltwater aquariums

Product includes:
1x Filter
1x Filter stone
1 x User manual

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2-Stage Filtration System

hygger internal filter for a small fish tank provides mechanical and biological filtration to help keep the water clear and the tank healthy. The fine sponge catches fish waste and tiny debris while bio balls provide plenty of spacious areas for the colony of beneficial bacteria.

No More Fish Get Suck up

As an internal fish tank filter, this small filter is a fish-safe seamless design without any moving parts, so it can protect the small fish from getting sucked up. It would not suck the tiny fry into the filter and there will not have a heavy load of debris in the water because the biofilter with gentle water flow is great for fragile invertebrates, such as fry fish, betta, guppy, shrimp, and tetras. The internal filter is perfect for shrimp tanks, quarantine tanks, or fry tanks.

Aerate the water for more oxygen

The best small internal aquarium filter not only can keep the tank water clean but also agitates water by making bubbles. It slowly moves water around which is great for fish that love slow-flowing such as betta and guppy fry fish, etc.

Low Maintenance Internal Filter

You can replace the sponge with any brand of sponge, just cut to the size and clean the bio balls every two months. Replace partial bio balls every six months, and replenish only ⅓ at one time.

Air Pump Driven Filter

Like most sponge filters, the hygger small internal filter requires at least a 2w air pump & an airline (both sold separately) to run with. The convenient plastic chamber allows for quick and easy access to filter media maintenance or replacement.

Directions for Use

How to set up hygger internal filter step by step

Set up hygger internal filter

Use Tips

1. Rinse these ceramic balls thoroughly before use. Please remember to rinse them in aquarium water not tap water.
2. Diameter of these bio balls: 1.8 cm. You can replace these balls with the same size or smaller bio balls as you want.


Size S measures 1.8 in W x 5.4 in H, suggesting 0.5–5 Gallons.
Size L measures 3 in W x 7.3 in H, suggest for 6–20 Gallons.

Additional information


Small for 1-5 Gal, Large for 6-20 Gal, Electric Version for 10-40 Gal

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1 review for hygger Aquarium Small Internal Filter

  1. Michael Miller

    I really like this filter. I need something easy, something with good filtration but less flow. It is also easy to access the filter sponge from the bottom.

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