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Terms and Conditions Apply!
We can ship to any address in Australia and New Zealand. Note that there are restrictions on some products, and some products cannot be shipped to some locations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full kilo.
The Dymax Crystal CO2 Indicator is a high-quality glass drop checker designed to monitor CO2 levels in planted aquariums. By providing a clear visual reading of dissolved CO2, this indicator helps aquarists maintain the correct balance for healthy plant growth and safe conditions for fish. Its elegant crystal-glass design blends seamlessly into any aquascape without distracting from the natural beauty of the aquarium.
Accurate CO2 Monitoring – Uses pH-sensitive indicator solution to provide a precise reading of CO2 concentration.
Elegant Glass Design – Transparent crystal glass construction makes it unobtrusive in aquariums.
Easy to Use – Simply add CO2 indicator solution and place inside the aquarium for continuous monitoring.
Safe for Fish & Plants – Ensures proper CO2 levels, preventing stress in fish while promoting plant growth.
Durable & Reusable – Made from high-quality glass for long-term use.
Fill the indicator with the recommended CO2 solution.
Attach securely inside the aquarium using suction or positioning within the aquascape.
Observe color changes (blue = low CO2, green = optimal CO2, yellow = high CO2).
Adjust CO2 injection accordingly for balanced plant growth and fish safety.
Ideal for planted aquariums using pressurized or DIY CO2 systems.
Use alongside a bubble counter for precise CO2 regulation.
Position the drop checker away from direct CO2 injection points for accurate readings.
Regularly replace indicator solution for consistent results.
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