Aqua One CO2 Permanent Tester
Pickup available at 28 Wellesley Road Napier South
Usually ready in 4 hours
Shipping & Returns
All goods are shipped using NZPost or Post Haste services with signature required option by default.
We cannot guarantee the overnight services, this is a service that we pay for; but is not guaranteed.
We do not offer refunds for change of mind, any returns needs to be organised with our team first prior to sending back.
If shipments are delayed by the carrier, we may not offer any reimbursement, New Zealand Post (NZPost) should be contacted directly.
Above are key points of our policy, Click Here to read our full shipping policy.
FREE Delivery & Rural Charges Policy
The minimum spend for free delivery on dry goods cannot be combined with frozen goods.
Where you have not met the minimum spend for free delivery, our team may contact you for freight payment.
Rural (RD) addresses require additional charges. To avoid delays if your address is rural, please select the Rural shipping option.
Above are key points of our policy, Click Here to read our full shipping policy.
The Aqua One CO2 Permanent Tester is a simple and effective tool designed to continuously monitor carbon dioxide (CO2) levels in planted aquariums. Maintaining the correct CO2 concentration is essential for healthy plant growth while ensuring fish and shrimp remain safe and comfortable. This permanent tester provides a convenient visual indication of CO2 levels directly inside the aquarium, helping aquarists quickly identify whether CO2 levels are too low, ideal, or excessive.
Ideal for planted freshwater aquariums, the Aqua One CO2 Permanent Tester allows for ongoing monitoring without the need for constant manual testing. Its easy-to-read colour indicator makes it suitable for both beginner and experienced aquascapers.
Product Type:
Permanent in-tank CO2 indicator
Suitable For:
Freshwater planted aquariums
Design:
Compact glass or acrylic drop checker style tester
Colour Indicator:
Uses colour-changing solution to display CO2 concentration levels
Installation:
Attaches inside aquarium glass using suction cup
Function & Performance
Purpose:
Continuously monitors dissolved CO2 levels in the aquarium
Reading Method:
Colour-based indication system
Typical Colour Guide:
- Blue = Low CO2
- Green = Ideal CO2 range
- Yellow = Excessive CO2
Monitoring Style:
24-hour passive monitoring
Best Use:
Planted aquariums using pressurised or DIY CO2 systems
Aquarium Requirements
Suitable Aquarium Type:
Freshwater planted aquariums
Placement:
Position opposite the CO2 diffuser for more accurate readings
Water Temperature Compatibility:
Suitable for standard tropical freshwater aquariums
Recommended Maintenance:
Replace indicator solution regularly for accurate readings
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