these work
"these work"

Product Details
The CO2 Generator Bags provide a natural, cost-effective and easy way to increase carbon dioxide (CO2) levels for plants grown in hydroponic grow rooms or greenhouses. 🌱💨
They eliminate the need for expensive electric CO2 generators, regulators, solenoids, or timers.
Tested extensively by A-Grade Hydroponics, this solution has proven to be a superior alternative for growers seeking simplicity, reliability, and natural performance. Visit the Melbourne showroom to see them in action.
🍄 Contains live fungi (mycelium) that naturally produce CO2
🌬️ Fungi absorb oxygen and release carbon dioxide as they grow
🔄 Opposite gas exchange to plants, making them ideal companions
🧺 CO2 is released through a built-in gas exchange filter
📏 Use 1 CO2 bag per 1m² of growing area
🏠 Suitable for indoor grow rooms and greenhouses
🌿 No extraction:
Hang above the plant canopy
CO2 is heavier than air and will fall down to plants
🌪️ With extraction:
Place under the canopy if airflow can circulate CO2 upwards
🔁 Position the bag furthest from the extraction point in ventilated rooms
🌀 Gentle air movement helps prevent CO2 stagnation
⌛ Lasts up to 6 months depending on temp & humidity
🔄 For best results, introduce a new bag every 3–4 months per 1m²
👀 When white mycelium stops growing and contents shrink, the bag is depleted
♻️ Eco-friendly: Add used contents to your compost
🤎 Starts brown and turns white as mycelium colonises
✅ Colour variation is normal, natural, and completely safe
SHIPPING
*All orders are dispatched in unmarked boxes to maintain your privacy.*
Orders are shipped via Australia Post or shipping platform Big Post. Orders are generally dispatched on Tuesday, Wednesday and Friday. Please allow for additional delivery time for remote areas. If you require express delivery, please contact our sales representatives at 03 9555 6667 or email grow@agradehydroponics.com to obtain a quote.
Couriers will attempt delivery to the specified address. If no one is home to receive the delivery, the couriers will leave your parcel somewhere safe. If there is no safe place, re-delivery or collection will be offered by the carrier.
Due to the increasing frequency of online fraud and theft, we are unable to ship to P.O. Boxes and Parcel Lockers.
All freight charges are calculated on weight, dimensions and location. We are committed to keeping shipping charges at a minimum and do not charge handling fees.
Please note: Freight costs are subject to change. Regional areas, large and bulky orders, and tail-lift delivery occasionally incur an additional levy. Should shipping costs need to be amended it will be to reflect the actual charges, and not incur additional ‘shipping and handling’ fees. We will notify you if this rare situation occurs.
A-Grade Hydroponics reserves the right to cancel the order if shipping costs become prohibitive and customers will be issued a full refund.
All payments must be cleared before dispatch. Payments can be made online via PayPal, AfterPay, PayID or Electronic Funds Transfer. Payments can also be accepted via credit card by phoning 03 9555 6667.
Please allow at least 24 hours for payments to clear.
You will be notified immediately if an item is permanently unavailable, with options for a replacement item at equal or higher value, refund or store credit.
All refunds will clear within 3-5 business days. Store Credits will be issued as an electronic Gift Card to be used online or in-store.
These goods are available for in-store collection only.
Overall rating: 4.9333334 / 5 from 15 reviews.
Review topics: [].
"these work"
"Works a treat"
"Experimented with these. They definitely add a noticeable touch for me."
"After 10 days the difference in foliage and the density is much more pronounced."
"Great product"
"I was pleasantly surprised at the boost this little bag gave my plant. Clearly works well!"
"Works great, noticeable difference in plants. Will use again"
"More 🌸!!"
"Professional and friendly advice as per usual."
"Plants seem happier after using this for 2 weeks. Thanks again for the great advice A Grade."