Excellent quality and service
I'm really happy with my purchase. The product arrived quickly, matched the description, and has exceeded my expectations.
These CO2 tablets release fine bubbles of carbon dioxide slowly into the water, giving aquarium plants the carbon they need for photosynthesis. The 1kg bulk pack holds about 666 tablets.
Key Features
- Slow Release: each tablet dissolves over 15 to 30 minutes.
- Fine Bubbles: tiny bubbles are easy for plants to absorb.
- Bulk Pack: about 666 tablets in 1kg.
- Simple Dosing: drop into the tank near plants with the light on.
Suitable For
Suitable for freshwater planted aquariums and aquascapes. Follow the dose guide on the pack and do not overdose.
| Material | Carbon dioxide slow release compound |
| Sizes | 1kg, about 666 tablets |
| Usage | Freshwater planted aquariums |
| Dissolving Time | 15 to 30 minutes |
| Storage | Keep dry and sealed, away from children |
| What is in the Box | 1kg of CO2 tablets |
Aquarium CO2 Slow Release Tablets for Planted Tanks, About 666 Tablets per 1kg Pack
Sale price
£39.99
Regular price
£53.99
These CO2 tablets release fine bubbles of carbon dioxide slowly into the water, giving aquarium plants the carbon they need for photosynthesis. The 1kg bulk pack holds about 666 tablets.
Key Features
- Slow Release: each tablet dissolves over 15 to 30 minutes.
- Fine Bubbles: tiny bubbles are easy for plants to absorb.
- Bulk Pack: about 666 tablets in 1kg.
- Simple Dosing: drop into the tank near plants with the light on.
Suitable For
Suitable for freshwater planted aquariums and aquascapes. Follow the dose guide on the pack and do not overdose.
| Material | Carbon dioxide slow release compound |
| Sizes | 1kg, about 666 tablets |
| Usage | Freshwater planted aquariums |
| Dissolving Time | 15 to 30 minutes |
| Storage | Keep dry and sealed, away from children |
| What is in the Box | 1kg of CO2 tablets |
10,000+ Premium Essentials
Explore over 10,000 carefully curated products. From daily essentials to specialized care, find everything your companion needs in one place.
Dedicated Pet Support
Have questions about the right product for your pet? Our friendly customer support team is always here to help you make the best choice.
Secure Checkout
Pay safely with Visa, Mastercard, PayPal, Apple Pay or Google Pay. Every transaction is encrypted — your payment details are never stored on our site.
Built for Pet Parents
Every product is picked with real pets in mind — dogs, cats, birds, fish and small pets alike — not just what looks good in photos.
What our customers say
Highlight authentic reviews from people who love your products.
Excellent quality and service
I'm really happy with my purchase. The product arrived quickly, matched the description, and has exceeded my expectations.
Excellent quality and service
I'm really happy with my purchase. The product arrived quickly, matched the description, and has exceeded my expectations.
Frequently Asked Questions
Common questions about shipping, returns, and ordering.
Orders are processed and shipped within 6-10 business days. You'll receive a tracking number by email as soon as your order ships, so you can follow its progress every step of the way.
Yes — we offer free standard shipping on all UK orders, with no minimum spend.
Yes, you'll receive a tracking number by email as soon as your order ships. See our Order Tracking page for details.
We offer a 14-day return window from the date of delivery. See our Returns & Refund Policy for full details.
We accept PayPal, all major debit and credit cards, and other secure payment options displayed at checkout.
We work with a trusted fulfilment network to get your order to you as quickly and reliably as possible. Estimated delivery times account for this.
Email us anytime at support@petroyale.co.uk or send us a message via WhatsApp. We usually reply within 1 business day, or even sooner.