Description
The AQ-CO2 INDICATOR by AQPET is a precision technical device, designed to provide simple, continuous, and visual monitoring of the dissolved carbon dioxide (CO2) concentration in any freshwater aquarium. Particularly conceived for densely planted aquariums, where CO2 dosing is essential to promote photosynthesis and lush plant growth, this instrument allows for safer and more effective regulation of CO2 delivery, preventing deficiencies or overdoses that could be harmful to the aquatic ecosystem.
Easy to install, discreet in design, and free of electronic components, the AQ-CO2 INDICATOR represents a practical, economical, and indispensable solution for any CO2 fertilization system, both in amateur tanks and professional setups.
Visual chemical operation – immediate and continuous control, 24 hours a day
The core of the system is a liquid-based indicator that changes color in response to the pH of the air contained in the device's chamber, which in turn is directly influenced by the concentration of dissolved CO2 in the aquarium water. The reactive liquid (included in the package) visually displays the CO2 level according to a standardized color scale:
- Blue Insufficient CO2 level
- Green Optimal CO2 level
- Yellow Excessive CO2 level
This method allows for:
- precise regulation of CO2 diffusion, adapting it to the quantity of plants and the size of the tank;
- avoiding risks to aquatic fauna, as an excessive presence of CO2 can reduce dissolved oxygen levels, causing stress or suffering in fish;
- optimizing photosynthesis, improving plant health and their ability to absorb nutrients, combat algae, and produce oxygen.
Monitoring is continuous and passive: it requires no electrical power, batteries, or daily maintenance.
Compact and functional design – easy to install, simple to read
The body of the AQ-CO2 INDICATOR is made of transparent and resistant plastic, designed to ensure a long lifespan even in aquatic environments with variable pH or the presence of fertilizers. The device is equipped with:
- a soft silicone suction cup, which allows for firm and secure installation on any part of the aquarium's inner glass (preferably in a visible area but away from strong currents);
- a semicircular reactive chamber, with an opening facing downwards, which protects the liquid from direct contamination with water, maintaining a stable and accurate reading for several days.
The indicator is compatible with all types of freshwater aquariums and can be easily moved or removed for maintenance or re-setup.
Perfect for planted aquariums and professional setups with active CO2 systems
The use of carbon dioxide in aquariums is a fundamental practice for:
- stimulating the photosynthesis of aquatic plants;
- improving foliage growth, coloration, and oxygen production;
- maintaining a stable biological balance within the tank.
However, the absence of a reliable visual monitoring system can lead to serious imbalances. The AQ-CO2 INDICATOR allows for real-time adjustment of the CO2 supplied, optimizing results and minimizing uncertainties.
It is particularly recommended for:
- planted tanks with liquid fertilization and bottled CO2;
- nano aquariums sensitive to concentration variations;
- environments with high plant density, where CO2 requirements are greater.
Package contents
- 1x AQ-CO2 Indicator in transparent plastic
- 1x Silicone suction cup for internal fixing
- 1x 15ml reactive solution
- User manual with installation and reading instructions
!!ATTENTION!! Reactive liquid not included. Must be purchased separately.
Technical specifications
- Type: Continuous visual chemical CO2 indicator
- Use: Freshwater aquariums with CO2 fertilization
- Installation: Internal, with suction cup – opening downwards
- Material: Polymers resistant to chemical agents
- Operation: Passive – no power required
- Compatibility: Universal
Main advantages of the AQ-CO2 INDICATOR
- Continuous 24/7 visual control of CO2 concentration
- No need for electricity or batteries
- Easy to install and read even for inexperienced users
- Accurate reading with intuitive color scale (blue, green, yellow)
- Compatible with all types of freshwater tanks
- Ideal for optimizing plant growth and animal welfare
- Resistant, durable, and safe materials
Guides for Beginners and Experts