Tetra Whisper IQ 20
Adjustable 10–130 GPH flow; Tetra gives no tank size.
Tetra Whisper IQ 20 vs Tetra Whisper IQ 45
What changes for you, from the makers' published figures. Neither is "better": the right one is the one that fits your tank and how you look after it.
For a 20 gallon long (example)
Neither fits by the makers’ ratings.
- Tetra Whisper IQ 20: No published tank rating.
- Tetra Whisper IQ 45: No published tank rating.
What changes for you
- Flow: Tetra Whisper IQ 20 up to 130 GPH, Tetra Whisper IQ 45 up to 215 GPH.
Next: Tetra Whisper IQ 20: details and fit · Tetra Whisper IQ 45: details and fit · All filters for your tank
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Tetra Whisper IQ 45
Adjustable 20–215 GPH flow; Tetra gives no tank size.
Side by side
| Published figure | Tetra Whisper IQ 20 | Tetra Whisper IQ 45 |
|---|---|---|
| In the box | filter body, flow control, Bio-Grid | filter body, flow control, Bio-Grid |
Figures as published by each maker; see each model’s page for its sources. Open this pair in the full comparison tool →