A stable CO2 level is the key to magnificent plant growth and a healthy biological balance. With the ShrimpPuddle Magnet CO2 Permanent Test, you can keep an eye on the CO2 concentration in your aquarium at all times. Thanks to its high-quality glass optics, the test appears subtle and elegant, while the innovative attachment ensures maximum convenience.

Why this permanent test is the better choice:

• No more suction cup problems: Conventional suction cups quickly become stiff underwater, lose their adhesive strength, or discolor unattractively. Our CO2 test comes with a powerful magnetic holder. This means: Rock-solid hold for eternity and no more wear and tear. The magnet is designed for glass thicknesses up to 12mm.
• Elegant glass design: The hand-blown glass blends almost invisibly into your aquascape. Unlike plastic versions, the glass remains permanently clear and can be easily cleaned if necessary.
• Free placement: Thanks to the magnetic system, you can place the permanent test anywhere in the aquarium – and even move it from the outside without having to reach into the water with your hands.
• Ready to use immediately: You don't have to search for accessories with us. The appropriate CO2 test solution is already included. Simply fill, attach, and read the CO2 value.
• Continuous monitoring: The indicator fluid shows you at all times whether your plants are optimally supplied by changing color (Blue = too little, Green = optimal, Yellow = too much CO2).

How the indicator fluid works:

• Economical 15 ml bottle: Quality doesn't have to be expensive. One bottle is enough for at least two complete fillings with standard permanent test vessels.
• Intuitive color scale: The indicator reacts precisely to the CO2 content in your aquarium water and shows you the current status with a clear color change:
  • BLUE: Too little CO2 – Fertilization should be slightly increased.
  • GREEN: Optimal CO2 level – Perfect conditions for plants and animals.
  • YELLOW: Too much CO2 – Caution! Reduce CO2 supply, danger to inhabitants.
• Ready to use immediately: You don't have to mix the solution with aquarium water. It is already adjusted to the correct carbonate hardness to provide an unadulterated result.

Scope of delivery:

• 1x Glass CO2 permanent test vessel (Drop Checker)
• 1x Powerful magnetic holder set (Inside & Outside)
• 1x CO2 indicator fluid