OASE Phosless Cartridges for BioTec
Best algae control for pond owners maintaining clear, healthy water features.
These cartridges are the secret weapon for anyone battling persistent pond algae. By aggressively stripping phosphates from the water, they do the heavy lifting your filter can't handle alone. You trade a bit of extra maintenance for significantly clearer water and a much healthier ecosystem for your fish.
$81.99
at
The Pond Guy
Who it's for
- Pond owners struggling with persistent string and blanket algae
- BioTec filter owners wanting a hassle-free, drop-in solution
- Busy pond keepers preferring low-maintenance, long-lasting water treatments
Who should skip it
- Budget-conscious owners seeking low-cost, generic filtration alternatives
- Hobbyists using smaller or non-Oase filtration systems
- Pond owners who prefer a set-and-forget maintenance schedule
Performance breakdown
Phosphate removal efficiency
Aggressively binds phosphates to starve algae at the source.
Installation simplicity
Designed for a seamless, tool-free swap into existing filter housings.
System compatibility
Engineered specifically for Oase BioTec units for a perfect fit.
Water clarity impact
Noticeably clears green water by preventing recurring algae blooms.
Build quality
Durable construction ensures media stays contained during high-flow operation.
Maintenance cycle
Reduces the frequency of deep cleans by optimizing filtration efficiency.
Key Specs
Compatibility
BioTec 18-36, BioTec ScreenMatic² 18000, 24000, 32000, 38000, 39000
Pack Quantity
2
Model Number
36981
Treatment Type
Phosphate removal
Suitable for Freshwater
Yes
Installation Note
BioTec ScreenMatic² 18000 uses 3 tubes, 24000 uses 4 tubes, and 39000 uses 12 tubes for full replacement
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