Sera Internal Filter L150
The Sera Internal Filter L150 is an efficient air-driven sponge filter designed for aquariums. Operating as a mammoth or airlift pump, it uses an air pump to push air through a hose into the standpipe, pulling aquarium water upward. As the water returns, it passes through a finely meshed sponge, offering an excellent surface for mechanical filtration. This sponge also supports the growth of nitrifying bacteria essential for breaking down pollutants. Perfect for nurturing larvae and juvenile fish, this filter prevents them from being sucked into standard filters due to their tiny size and unique swimming patterns.
Key Features
- Designed for use with an air pump to create water flow
- Finely meshed sponge provides mechanical filtration
- Supports growth of nitrifying bacteria for biological filtration
- Safe for use with larvae and juvenile fish
- Internal filter design reduces risk of fish being sucked in
| Specification | Detail |
|---|---|
| Filter Type | Internal sponge filter |
| Flow Mechanism | Air-driven (air pump required) |
| Sponge Mesh | Finely meshed |
| Best For | Larvae, juvenile fish, small aquariums |
FAQ
Can this filter be used with a standard air pump?
Yes, the Sera Internal Filter L150 requires an external air pump to operate. Connect the air pump to the hose to create water flow through the filter.
Is the sponge filter suitable for breeding tanks?
Yes, the filter is ideal for breeding tanks due to its gentle flow and protection of tiny fish and larvae.
Does the filter support biological filtration?
Yes, the finely meshed sponge provides a surface for nitrifying bacteria to grow, supporting biological filtration.

Sally Jones –
I used this filter for my juvenile guppies and it has been a game-changer. The water flow is gentle and the sponge keeps the tiny fish safe from being sucked in. The bacteria growth has improved water clarity over time.
Carolyn Fisher –
Works well with my air pump. The filter is easy to install and the sponge stays clean without clogging. I noticed better water quality after a few weeks.
Madeleine Lawrence –
Perfect for a breeding tank. The filter handles the small fry without damage and maintains stable water conditions. I appreciate the biological support from the sponge.