Boyu · Canister
DGN-410 / 460 / 520 Canister Filter
- Flow
- 1,610 L/h
Mid to large planted tanks where you want to tune flow to the scape without swapping filters.
6 models
Oase · Canister
Oase BioMaster 2
Oase's main canister filter, built around a pre-filter module you lift out and rinse without opening the whole canister. Water passes through foam first, so the Hel-X biological media behind it stays clean for much longer. A heater can be retrofitted later, and there is a Thermo version with one already fitted.
Updated
650–1,550 L/h10 models
Will it suit my tank?
litres
Best for
Medium to large planted tanks where you want long gaps between full cleans and easy weekly pre-filter rinses.
Worth knowing
Rated flow drops once hoses, lily pipes and media are fitted, so size up for a heavily planted tank.
What stands out
- Five sizes for tanks from 150 to 850 litres
- Pre-filter lifts out for a quick rinse without opening the canister
- 3 to 8 litres of media including Hel-X
- Priming button and auto shut-off valves make restarts easy
Models and specs
| Model | Flow | Tank size | Power | Media volume | Hose | Heater | Dimensions (L × W × H) |
|---|---|---|---|---|---|---|---|
| 15099161 | 650 L/h | up to 150 L | 10 W | 3 L | 12 mm | – | 24 × 24 × 31.5 cm |
| 25094717 | 945 L/h | up to 250 L | 15 W | 4.4 L | 16 mm | – | 24 × 24 × 31.5 cm |
| 35094709 | 1,100 L/h | up to 350 L | 18 W | 5.6 L | 16 mm | – | – |
| 60094701 | 1,400 L/h | up to 600 L | 22 W | 6.8 L | 16 mm | – | 24 × 24 × 48 cm |
| 85094695 | 1,550 L/h | up to 850 L | 28 W | 8 L | 16 mm | – | 24 × 24 × 53.5 cm |
| 150 Thermo99165 | 650 L/h | up to 150 L | 10 W | 3 L | 12 mm | 150 W | 24 × 24 × 31.5 cm |
| 250 Thermo94690 | 945 L/h | up to 250 L | 15 W | 4.4 L | 16 mm | 150 W | 24 × 24 × 31.5 cm |
| 350 Thermo94685 | 1,100 L/h | up to 350 L | 18 W | 5.6 L | 16 mm | 200 W | – |
| 600 Thermo94680 | 1,400 L/h | up to 600 L | 22 W | 6.8 L | 16 mm | 300 W | 24 × 24 × 48 cm |
| 850 Thermo94675 | 1,550 L/h | up to 850 L | 28 W | 8 L | 16 mm | 400 W | 24 × 24 × 53.5 cm |
- Brand
- Oase
- Hose size
- 12/16 mm (150), 16/22 mm (250 to 850)
- Pre-filter
- EasyClean removable pre-filter module, 30/45 ppi sponges
- Biological media
- Hel-X plus filter sponges
- Priming
- Priming/venting button
- Safety
- Automatic shut-off valve when the pre-filter is removed
- Thermo versions
- Available with a built-in heater (models marked Thermo), which keeps the heater out of the tank
Figures from Charterhouse Aquatics's product listing. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
Compare with
Browse all filters
Boyu · Canister
DGN-80 / 120 UVC Canister Filter
- Flow
- 800–1,200 L/h
Medium to large community tanks where the owner wants mechanical, biological and UV treatment in one box.
2 models
Boyu · Canister
EF / EFU Canister Filter
- Flow
- 300–1,100 L/h
- Tank size
- 100–650 L
Budget-minded keepers with 100 to 650 litre tanks who want canister filtration and optional UV.
6 models
Boyu · Canister
FEF-230 / 280 Canister Filter
- Flow
- 800–1,000 L/h
Medium tanks around 150 to 300 litres where a budget UV canister makes sense.
2 models
Frequently asked questions
Quick answers about the Oase BioMaster 2, drawn from its specs.
What size tank is the Oase BioMaster 2 good for?
Using the 5 to 12 times turnover rule for planted tanks: 150 (650 L/h, suits roughly 54–130 L); 250 (945 L/h, suits roughly 79–189 L); 350 (1,100 L/h, suits roughly 92–220 L); 600 (1,400 L/h, suits roughly 117–280 L); 850 (1,550 L/h, suits roughly 129–310 L); 150 Thermo (650 L/h, suits roughly 54–130 L); 250 Thermo (945 L/h, suits roughly 79–189 L); 350 Thermo (1,100 L/h, suits roughly 92–220 L); 600 Thermo (1,400 L/h, suits roughly 117–280 L); 850 Thermo (1,550 L/h, suits roughly 129–310 L). The maker rates the range for tanks up to 850 L. Real flow with media and hoses is lower than the rated figure, so pick the bigger model if you are between sizes.
Who is the Oase BioMaster 2 best for?
Medium to large planted tanks where you want long gaps between full cleans and easy weekly pre-filter rinses.
Is there anything to watch out for with the Oase BioMaster 2?
Rated flow drops once hoses, lily pipes and media are fitted, so size up for a heavily planted tank.
What are the alternatives to the Oase BioMaster 2?
Other filters worth comparing: Boyu DGN-410 / 460 / 520 Canister Filter, Boyu DGN-80 / 120 UVC Canister Filter, Boyu EF / EFU Canister Filter. Add any of them to the compare table to see the specs side by side.