Co2 Drop Checker Glass + Solution (Combo Pack)

The CO₂ Drop Checker Glass + Solution (Combo Pack) is an essential monitoring tool for planted aquarium setups using pressurized CO₂ systems. This combo includes a high-quality glass drop checker and a pre-mixed indicator solution, allowing aquarists to visually track CO₂ concentration inside the aquarium.

The drop checker changes color based on CO₂ levels—blue (low CO₂), green (optimal), and yellow (excess CO₂)—making it easy to adjust CO₂ injection for optimal plant growth while keeping fish safe.

Crafted from transparent glass, the drop checker blends seamlessly into aquascapes without distracting from the layout. This combo pack offers a simple, reliable, and beginner-friendly way to maintain stable CO₂ levels in any planted freshwater aquarium.

Key Features & Benefits

• Accurate visual CO₂ level monitoring

• Color-changing indicator solution

• High-quality transparent glass drop checker

• Easy to read and maintain

• Improves plant health and CO₂ efficiency

• Helps prevent fish stress due to excess CO₂

Product Specifications

• Product Type: CO₂ Monitoring Tool

• Included: Glass drop checker + Indicator solution

• Material: Glass

• Indicator Colors: Blue / Green / Yellow

• Aquarium Type: Freshwater planted aquariums

• CO₂ System: Pressurized CO₂

Recommended For

• Planted and aquascaped aquariums

• CO₂-injected tanks

• Beginner and advanced aquarists

• Nano to large aquariums

• Aquascaping enthusiasts

Usage & Maintenance Notes

• Fill drop checker with provided solution

• Place inside aquarium below water surface

• Allow 1–2 hours for accurate color reading

• Aim for green color during lights-on period

• Rinse glass periodically to remove algae