Twinstar · Electrolytic
Nano Sterilizer / Algae Inhibitor
- Tank size
- 19–250 L
Planted tanks up to about 250 L where you want an extra hedge against green water and algae, especially during the first months.
4 models
Chihiros · Electrolytic
Chihiros Doctor 5
Chihiros' latest electrolytic water-care unit. A reactor in the tank produces short-lived oxidisers to hold back algae and harmful bacteria, while the controller also watches temperature and shows it on a small screen and in the app.
Updated
Will it suit my tank?
litres
Best for
Freshwater planted tanks where you want algae prevention and a temperature alarm in one small gadget.
Worth knowing
Only for water under 500 ppm TDS, and the reactor is a consumable that needs replacing.
What stands out
- Micro-electrolysis reactor with magnetic connections
- Three modes; you enter your tank size during setup
- Temperature monitoring with app and on-screen alerts
- Bluetooth control via MyChihiros
- Maker states it is safe for fish, shrimp and filter bacteria
Specs
- Brand
- Chihiros
- Method
- Micro-electrolysis
- Control
- Bluetooth app + display
- Modes
- 3
- Water
- Freshwater, TDS below 500 ppm
Figures from Glass Aqua's product listing. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
Compare with
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- Tank size
- up to 125 L
Nano and small planted tanks, including shrimp tanks, that want an algae and bacteria hedge.
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Mid-size and larger planted tanks where you want an extra tool against algae alongside good maintenance.
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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
Frequently asked questions
Quick answers about the Chihiros Doctor 5, drawn from its specs.
Who is the Chihiros Doctor 5 best for?
Freshwater planted tanks where you want algae prevention and a temperature alarm in one small gadget.
Is there anything to watch out for with the Chihiros Doctor 5?
Only for water under 500 ppm TDS, and the reactor is a consumable that needs replacing.
What are the alternatives to the Chihiros Doctor 5?
Other uv & sterilisers worth comparing: Twinstar Nano Sterilizer / Algae Inhibitor, Chihiros Doctor Mate, Chihiros New Doctor. Add any of them to the compare table to see the specs side by side.
How do I compare the Chihiros Doctor 5 with similar products?
Tap Compare on this page and on any other steriliser you are considering, then open the compare table. It lines up every published spec side by side and lets you pick the size of each product.