LGND Rhapsody™ CO₂ Glass Diffuser

Legend Rhapsody™ Glass CO₂ Diffuser is a handcrafted glass CO₂ atomizer designed to provide efficient carbon dioxide diffusion while maintaining the clean, minimalist appearance expected in modern planted aquariums and aquascapes. Utilizing a precision ceramic membrane, Rhapsody™ transforms pressurized carbon dioxide into a dense cloud of ultra-fine microbubbles that dissolve rapidly into the aquarium water, maximizing CO₂ availability for aquatic plants.

Healthy plant growth depends on a stable and efficient supply of carbon dioxide. The ceramic diffusion element used in Rhapsody™ produces extremely small bubbles with a high surface-area-to-volume ratio, allowing carbon dioxide to dissolve more effectively than larger conventional bubbles. This increased dissolution efficiency helps improve plant growth, coloration, photosynthetic activity, and overall aquarium stability while minimizing unnecessary CO₂ waste.

Manufactured from high-quality laboratory-grade glass, Rhapsody™ blends seamlessly into the aquarium environment and remains visually unobtrusive. Each diffuser is individually handcrafted, resulting in a unique piece with slight dimensional variations that reflect traditional glassworking techniques. Combined with a premium ceramic membrane and included transparent suction cup, Rhapsody™ offers an elegant and highly effective solution for aquarists seeking reliable CO₂ delivery without compromising aesthetics.

Install the diffuser inside the aquarium in an area with moderate water circulation to ensure efficient distribution of dissolved carbon dioxide throughout the aquarium. Secure the diffuser using the supplied transparent suction cup and position it low within the aquarium whenever possible to maximize contact time between CO₂ bubbles and the surrounding water.

Connect the diffuser to the CO₂ regulator using suitable 4/6 mm tubing. Soft CO₂ tubing is recommended, as it reduces stress on the glass connection and minimizes the risk of accidental damage during installation.

Before operation, allow the ceramic membrane to soak in aquarium water for approximately two hours. This permits water to penetrate the microscopic pores of the ceramic membrane and improves diffusion performance during initial use.

Once connected, gradually increase CO₂ pressure until a uniform mist of fine bubbles is produced across the ceramic surface. New ceramic membranes may initially generate larger bubbles; however, as the membrane becomes fully saturated, bubble size will decrease and diffusion efficiency will improve.

Monitor CO₂ levels regularly and adjust injection rates gradually to achieve the desired concentration while maintaining safe conditions for fish and invertebrates.

Over time, algae growth, mineral deposits, and organic residues may accumulate on the ceramic membrane and reduce diffusion efficiency. Larger bubbles, uneven diffusion, or visible discoloration of the ceramic surface generally indicate that cleaning is required.

Prepare a cleaning solution consisting of equal parts household chlorine bleach and water. Fully immerse the diffuser so that the ceramic membrane and glass components are completely covered. Allow the diffuser to soak for one to four hours depending on the severity of contamination.

After soaking, rinse thoroughly with clean water until all traces of bleach have been removed. Once cleaned, the ceramic membrane will typically regain its original appearance and diffusion performance.

Always follow the bleach manufacturer's safety instructions and ensure all cleaning residues have been removed before returning the diffuser to service.

For aquarium use only. Handle the diffuser carefully at all times. The product is manufactured from glass and may break if dropped, struck, subjected to excessive force, or exposed to sudden pressure changes. Particular care should be taken during installation, maintenance, cleaning, and removal of suction cups or tubing.

If breakage occurs, dispose of damaged glass safely in accordance with local regulations. Do not expose the diffuser to boiling water or sudden temperature changes, as thermal shock may cause cracking or breakage.

When operating a pressurized CO₂ system, ensure all connections are secure before introducing gas pressure. Excessive CO₂ concentrations may cause stress or respiratory difficulties in fish, shrimp, and other aquatic organisms. Always increase CO₂ levels gradually and monitor aquarium inhabitants closely. Keep out of reach of children.

Download Safety Data Sheet (SDS)