Tetra Whisper Ex20 Power Filter
The new EX Series Filtration Systems offer a simplified approach to aquarium maintenance with innovative features designed for ease of use and convenience.
Equipped with Timestrip(R) technology, this filter automatically indicates when the carbon filter needs replacement. The patented carbon filter carrier ensures a secure fit and simplifies the filter change process without requiring the user to handle dirty cartridges.
The access door remains in place during filter changes, keeping hands away from dirty components and minimizing spills on floors or furniture. The submerged motor design reduces maintenance compared to previous external models.
| Feature | Description |
|---|---|
| Filter Type | Carbon filter with Timestrip(R) indicator |
| Motor Type | Submerged motor |
| Setup | Ready to use out of the box; adjust intake tube to proper depth and plug in |
| Maintenance | Change carbon filter when Timestrip(R) indicates; no drips during filter replacement |
FAQ
How often should I replace the carbon filter?
The Timestrip(R) technology on the filter will indicate when replacement is needed. Follow the indicator markings for timing.
Can I change the filter without removing the access door?
Yes, the access door stays in place during filter changes, allowing you to replace the filter carrier without exposing your hands to dirty components.
Is the motor easy to maintain?
The submerged motor design requires less maintenance compared to previous external models, reducing the need for frequent cleaning or inspection.

Molly Newman –
Set up was straightforward. Just plugged it in and adjusted the intake. The Timestrip indicator helped me know when to change the filter. No spills during maintenance, which was a big plus.
Christian King –
The filter runs quietly and keeps the water clean. I like that the access door stays in place when changing the filter. It’s much easier than with older models.
James Thomson –
I’ve had this for three months and the water clarity has improved noticeably. The Timestrip tells me exactly when to replace the carbon, so I don’t waste filters.
Ruth Mitchell –
It’s simple to use and the submerged motor doesn’t need much attention. I didn’t have to clean it often, which is a relief after using previous external filters.