OASE
OASE BioMaster Thermo 850 Canister Filter
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Best Aquarium Filters · head-to-head
OASE BioMaster Thermo 850 Canister Filter vs Seachem Tidal 110 Power Filter
A sourced, side-by-side comparison. OASE BioMaster Thermo 850 Canister Filter is cheaper at —. Every spec and price links to its source.
Seachem
Seachem Tidal 110 Power Filter
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | OASE BioMaster Thermo 850 Canister Filter | Seachem Tidal 110 Power Filter |
|---|---|---|
| US price | — | — |
| Brand | OASE | Seachem |
| Released | — | — |
| Type | canister | hang-on-back |
| Flow rate gph | 400 | 450 |
| Tank size gal | 250 | 110 |
| Media capacity (L) | 8 | 3.2 |
| Media stages | 4 | — |
| Wattage | 32 | 12 |
| Self priming | Yes | Yes |
| Dimensions (in) | 9.4 x 9.4 x 21.1 | 11.625 x 7.625 x 9.5 |
Sources — OASE BioMaster Thermo 850 Canister Filter: aquaristikshop.com (verified 2026-08-01). Seachem Tidal 110 Power Filter: seachem.com (verified 2026-08-01).
What's the difference between the OASE BioMaster Thermo 850 Canister Filter and Seachem Tidal 110 Power Filter?
Where the two actually differ on the specs we track (6 of 8). Matching specs are omitted.
- Type: OASE BioMaster Thermo 850 Canister Filter canister vs Seachem Tidal 110 Power Filter hang-on-back
- Flow rate gph: OASE BioMaster Thermo 850 Canister Filter 400 vs Seachem Tidal 110 Power Filter 450
- Tank size gal: OASE BioMaster Thermo 850 Canister Filter 250 vs Seachem Tidal 110 Power Filter 110
- Media capacity (L): OASE BioMaster Thermo 850 Canister Filter 8 vs Seachem Tidal 110 Power Filter 3.2
- Wattage: OASE BioMaster Thermo 850 Canister Filter 32 vs Seachem Tidal 110 Power Filter 12
- Dimensions (in): OASE BioMaster Thermo 850 Canister Filter 9.4 x 9.4 x 21.1 vs Seachem Tidal 110 Power Filter 11.625 x 7.625 x 9.5