Cup CO2 Glass Diffuser 3.5cm
$20.00
A compact 3.5cm glass CO2 diffuser with a ceramic disc and cup-style design that traps micro-bubbles for longer, more efficient CO2 dissolution.
10 in stock
Add efficient, fine CO2 diffusion to your planted aquarium with the TNA Cup CO2 Glass Diffuser. This compact 3.5cm glass diffuser features a ceramic diffusion disc housed within a “cup” style base, which helps collect and hold CO2 micro-bubbles beneath it — extending contact time with the water and improving overall dissolution and plant uptake before any excess gas escapes to the surface.
Simple, compact, and unobtrusive, this diffuser is designed to sit inside the aquarium (typically suction-mounted to the glass) and connects directly to your CO2 tubing.
Key Features
- Compact 3.5cm size — suits small to medium aquariums or tight spaces
- Ceramic diffusion disc for fine micro-bubble output
- Cup-style design holds bubbles in place longer for improved CO2 dissolution
- Clear glass construction for a clean, discreet look in the aquascape
- Compatible with standard CO2 tubing
Why Choose the TNA Cup Diffuser
- Fine micro-bubbles maximise CO2 contact time and absorption by plants
- Cup design improves on standard diffusers by trapping bubbles for longer dissolution time
- Glass construction won’t cloud, discolour, or leach chemicals over time
- Compact size makes it ideal for nano and small-to-medium planted tanks
Maintenance Tip
The ceramic diffusion disc can become less effective over time as pores clog with mineral deposits or biofilm. Regular cleaning (e.g. soaking in a bleach solution and thoroughly rinsing, or gently scrubbing) helps maintain fine bubble output and diffusion efficiency.
The shipping prices are determined by Australia Post, and we do not make any profit from postage fees. Any variation in price is solely due to packaging. Our aim is to offer you the most competitive rates for shipping your orders. At Green Aquarium, we strive to provide you with the best shipping options for your aquatic plants, fertilisers, shrimp, and fish. Please review the following information regarding our shipping and delivery services:
Shipping Options:
- Express Post: Recommended for purchasing plants, shrimp, and fish. Plants will be carefully packed in a small express post box, secured in a plastic bag with a small amount of water, and wrapped in bubble wrap for added protection.
- Styrofoam Box Express: Specifically for shipping live shrimp and fish. We use a sturdy Styrofoam box and send it via express post to ensure the safety and well-being of your aquatic pets during transit.
- Registered Post for Fertilisers: Suitable for shipping fertilisers. Your order will be sent via registered post, providing a secure and reliable delivery option.
- Express Post for Fertilisers: If you prefer faster delivery for your fertilisers, we offer express post services.
Please Note: The prices for shipping are set by Australia Post, and we do not make any profit from postage fees. Any difference in price would be due to packaging. We strive to provide you with the best available rates for shipping your orders.
Shipping within Australia: We currently offer shipping services within Australia only. We apologise for any inconvenience caused and appreciate your understanding.
Local Delivery: If you're in the vicinity or would like to avoid shipping fees, we invite you to select the local delivery option at checkout. Before placing your order, please contact us via email, SMS, or phone call to confirm if this option is available for your area. Additionally, reach out to us to schedule a specific time and date for the delivery. Opting for local delivery is an excellent way to reduce shipping expenses.
Pick-Up Option: If you're located nearby or prefer to save on shipping costs, we welcome you to choose the pick-up option during the checkout process. Our address for pick-up will be provided upon completion of your order. Opting for pick-up is a great way to save on shipping expenses.
Shipping Address Requirements: Please note that we do not ship to PO Boxes. Kindly provide a valid residential or commercial address during the checkout process to ensure successful delivery.
If you have any questions or require further assistance regarding our shipping and delivery services, please don't hesitate to contact our customer support team. We are here to help you with any queries you may have.
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