Betta 150 Replacement Sponge
Replacement filter sponge for the Betta Aquarium Internal Filter.
It is advisable that you clean the filter in old aquarium water during maintenance.
Do NOT clean the filter in tap water as chlorine and chloramines will remove the beneficial nitrifying bacteria that have colonised during the maturation of the aquarium.
| Product Type | Replacement Sponge |
|---|---|
| Compatible Filter Model | Betta 150 Internal Filter |
| Usage | Filter media for aquarium water filtration |
FAQ
Can I clean the filter sponge with tap water?
No, do not clean the filter sponge with tap water. Chlorine and chloramines in tap water will destroy the beneficial nitrifying bacteria that have established in the filter.
How often should I replace the sponge?
Replace the sponge when it becomes visibly clogged or loses its filtration efficiency, typically every 4 to 6 weeks depending on tank conditions.
Is this sponge compatible with other Betta filter models?
Please contact customer service for compatibility with other Betta filter models.

Adrian Martin –
The sponge fits perfectly in my Betta 150 filter. I’ve used it for three months now and it still maintains good water flow. I always clean it in old tank water to preserve the bacteria. Easy to replace and works well with my small aquarium setup.
Jake Rutherford –
Works as expected. The sponge holds up well during regular maintenance. I noticed a slight difference in water clarity after a few weeks of use, which I attribute to better filtration. Just make sure to clean it in tank water only.
Penelope Poole –
Great replacement for the original sponge. It fits snugly and doesn’t fall out during filter operation. I’ve kept it for over two months without any issues. The filter performs consistently and keeps the water clean.