• For aquariums 75-190 L (20-50 US gallons).
• Preferred pollen-style diffuser for large aquaria or high-growth aquaria.
• Large surface area of diffuser disc ideal for high volumes of CO₂ gas.

The 30 mm glass Beetle Diffuser is a pollen style CO₂ diffuser that connects to CO₂ injection systems to easily disperse CO₂ gas into the planted aquarium. The large surface area of the 30 mm disc allows for the diffusion of large volumes of CO₂ gas, making the 30 mm Beetle Diffuser an excellent choice for larger aquaria or high-growth aquaria.

Compatible with 6mm (1/4″) – Standard Airline Tubing. Suction cups included.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number — or email us, if you would rather — and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 72 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.