Boyu · UV clarifier
Submersible UV Steriliser
- UV lamp
- 4–20 W
Knocking out a green water bloom or running in a sump on a larger system.
6 models
Oase · UV clarifier
Oase ClearTronic
An inline UV-C clarifier that plumbs into your filter outlet hose and clears green water and free-floating bacteria. The ballast is built into the body, so there is no separate box to find room for in the cabinet. The lamp and quartz sleeve come out with a quick-release for cleaning.
Updated
7–11 W3 models
Will it suit my tank?
litres
Best for
Canister-filtered tanks prone to green water, or keepers who want an extra safeguard against outbreaks.
Worth knowing
UV lamps lose strength over time and need replacing roughly yearly, and UV does not fix the nutrient or light imbalance behind algae.
What stands out
- 7, 9 or 11 W UV-C for tanks up to 250, 400 or 600 litres
- Integrated ballast, compact 33 cm body
- Quick-release for lamp changes and quartz cleaning
- Connection accessories included
Models and specs
| Model | Tank size | UV lamp | Power | Dimensions (L × W × H) |
|---|---|---|---|---|
| 7 W19244 | up to 250 L | 7 W | 11 W | 33 × 12 × 10 cm |
| 9 W19258 | up to 400 L | 9 W | 12 W | 33 × 12 × 10 cm |
| 11 W19245 | up to 600 L | 11 W | 14 W | 33 × 12 × 10 cm |
- Brand
- Oase
- Connection
- 17 mm
- Max operating pressure
- 0.5 bar
- Max water temperature
- 35 °C
- Protection
- IP24
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 uv & sterilisers
Eheim · UV clarifier
reeflexUV
- Tank size
- 80–800 L
- UV lamp
- 7–11 W
Planted tanks prone to green water, or anyone wanting a bit of extra clarity and pathogen control.
3 models
Eheim · UV clarifier
reeflexUV+e
- Tank size
- 300–2000 L
Larger planted tanks where you want UV only for set hours, or want it tied into an Eheim digital setup.
4 models
SunSun · UV clarifier
AUV UV-C Lamp
- Tank size
- up to 2600 L
- UV lamp
- 3–14 W
Tanks or sumps with green water or where you want to cut free-floating bacteria.
6 models
Frequently asked questions
Quick answers about the Oase ClearTronic, drawn from its specs.
What size tank is the Oase ClearTronic for?
The maker rates it by model: 7 W up to 250 L, 9 W up to 400 L, 11 W up to 600 L.
Who is the Oase ClearTronic best for?
Canister-filtered tanks prone to green water, or keepers who want an extra safeguard against outbreaks.
Is there anything to watch out for with the Oase ClearTronic?
UV lamps lose strength over time and need replacing roughly yearly, and UV does not fix the nutrient or light imbalance behind algae.
What are the alternatives to the Oase ClearTronic?
Other uv & sterilisers worth comparing: Boyu Submersible UV Steriliser, Eheim reeflexUV, Eheim reeflexUV+e. Add any of them to the compare table to see the specs side by side.