CO₂

LGND Pearl™ CO₂ Check Acrylic Kit

Drop checker set made of acrylic

Includes indicator solution

Precise CO2 monitoring

Stable, discreet design

£ 11.99 (incl. VAT)

  • EUR: 13.95€

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Overview

Pearl™ CO2 Check Acrylic Kit is a complete CO2 monitoring system designed to provide continuous visual indication of dissolved carbon dioxide levels in planted aquariums. The kit combines a high-quality glass drop checker with a durable acrylic holder, creating an elegant and unobtrusive solution that blends naturally into any aquascape.

Maintaining proper CO2 concentration is essential for healthy aquatic plant growth and efficient photosynthesis. Insufficient CO2 can limit plant development, while excessive levels may place unnecessary stress on fish and shrimp. Pearl™ CO2 Check Acrylic Kit helps aquarists maintain the ideal balance by providing a simple colour-based indication of CO2 concentration within the aquarium.

The included indicator solution is formulated to provide accurate reference values independent of aquarium water chemistry, allowing reliable monitoring without interference from substances commonly found in freshwater aquariums.

The premium glass chamber offers excellent clarity for easy colour interpretation, while the acrylic holder provides secure positioning and long-term durability. Suitable for both beginner and advanced aquascapers, Pearl™ CO2 Check Acrylic Kit delivers continuous monitoring without requiring electronic equipment or complex calibration procedures.

Directions

Fill the glass drop checker with approximately 1–2 mL of the supplied CO2 indicator solution. Carefully position the checker inside the aquarium using the acrylic holder in an area with moderate water circulation, away from direct CO2 diffuser output.

Allow approximately 1–2 hours for the indicator solution to equilibrate with the aquarium water. Once stabilized, observe the colour of the solution and adjust CO2 injection accordingly.

  • Blue — insufficient CO2 concentration for optimal plant growth
  • Green — optimal CO2 concentration suitable for most planted aquariums
  • Yellow — elevated CO2 levels that may become stressful or harmful to fish and shrimp if maintained for extended periods

For the most consistent results, monitor the checker daily and make gradual adjustments to CO2 injection rather than large corrections. When refilling the indicator solution, use a precision dropper bottle to ensure accurate and repeatable dosing.

Technical Specifications
Length
25 mm
Width
25 mm
Height
35 mm
Material
Acrylic
Indicator solution
1 x 15 mL Pearl™ CO2 Check Liquid
Mounting
Suction cup
FAQ
How long does it take for the checker to respond to CO2 changes?

The indicator solution typically requires 1–2 hours to fully reflect changes in aquarium CO2 concentration.

What colour indicates the correct CO2 level?

Green indicates the optimal CO2 range for most planted aquariums and provides an excellent balance between plant growth and livestock safety.

Why is the solution still blue after increasing CO2 injection?

The drop checker reacts gradually and may require additional time before showing the new CO2 level. Verify that the CO2 system is functioning correctly and allow sufficient stabilization time.

Can water chemistry affect the reading?

No. The supplied indicator solution is designed to measure CO2 independently of aquarium water parameters, helping provide more reliable results.

Is the checker suitable for shrimp aquariums?

Yes. The Pearl™ CO2 Check Acrylic Kit is suitable for aquariums containing shrimp, fish, and aquatic plants. Proper monitoring helps prevent excessive CO2 concentrations that may stress sensitive species.

How often should the indicator solution be replaced?

For best performance and colour accuracy, replace the indicator solution every 4–6 weeks or whenever contamination is suspected.

Safety

For aquarium use only. Keep out of reach of children and pets. This product may stain skin, clothing, silicone seals, decorations, and porous materials. Avoid contact with fabrics and household surfaces.

Wash hands thoroughly after use. Avoid contact with eyes and mouth. In case of accidental contact, rinse thoroughly with clean water. Do not overdose. Store tightly closed in a cool, dry place away from direct sunlight.

Not intended for human consumption or veterinary use outside ornamental aquatic animals.

Download Safety Data Sheet (SDS)

Download Images
Code
Name
22349
Pearl™ CO2 Check Acrylic Kit
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