Fluval
Fluval FX6 Canister Filter
$369.99
Best Aquarium Filters · head-to-head
Fluval FX6 Canister Filter vs Penn-Plax Cascade 1000 Canister Filter
A sourced, side-by-side comparison. Fluval FX6 Canister Filter is cheaper at $369.99. Every spec and price links to its source.
Penn-Plax
Penn-Plax Cascade 1000 Canister Filter
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Fluval FX6 Canister Filter | Penn-Plax Cascade 1000 Canister Filter |
|---|---|---|
| US price | $369.99 | — |
| Brand | Fluval | Penn-Plax |
| Released | — | — |
| Type | canister | canister |
| Flow rate gph | 925 | 265 |
| Tank size gal | 400 | 100 |
| Media capacity (L) | 5.9 | — |
| Media stages | 3 | 3 |
| Wattage | 43 | 28.5 |
| Self priming | Yes | Yes |
| Dimensions (in) | 15.75 x 15.75 x 20.8 | 11.5 x 10 x 17 |
Sources — Fluval FX6 Canister Filter: fluvalaquatics.com (verified 2026-08-01). Penn-Plax Cascade 1000 Canister Filter: eorder.pennplax.com (verified 2026-08-01).
What's the difference between the Fluval FX6 Canister Filter and Penn-Plax Cascade 1000 Canister Filter?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Flow rate gph: Fluval FX6 Canister Filter 925 vs Penn-Plax Cascade 1000 Canister Filter 265
- Tank size gal: Fluval FX6 Canister Filter 400 vs Penn-Plax Cascade 1000 Canister Filter 100
- Wattage: Fluval FX6 Canister Filter 43 vs Penn-Plax Cascade 1000 Canister Filter 28.5
- Dimensions (in): Fluval FX6 Canister Filter 15.75 x 15.75 x 20.8 vs Penn-Plax Cascade 1000 Canister Filter 11.5 x 10 x 17