Tetra CO2 Optimat - 11 g
Best current price£6.99from eBay
Best offers
Shopping.co.uk recommended and popular offers
eBay£6.99Visit shop Tetra CO2 Optimat Refill Aquarium Planted Fish Tank Carbon Dioxide
Visit shopeBay£6.99Visit shop All Offers
4 offers from £6.99 - £11.67
View price history by clicking the chart icon.
eBayTetra CO2 Optimat Refill Aquarium Planted Fish Tank Carbon Dioxide
Free delivery in 1–3 days
£6.99
Visit shop
Tetra CO2 Optimat Refill Depot | Planted Aquarium Fish Tank CO2 Fertiliser Kit£3.99 delivery£7.39Visit shop →
Product Information
Full details
The Tetra CO2 Optimat Refill is an essential component for aquarium enthusiasts looking to support lush, healthy plant growth in tanks between 50 and 100 liters. By providing a consistent supply of carbon dioxide, this product aids photosynthesis, improves oxygenation for fish, and helps prevent limescale accumulation, though it requires an existing Tetra CO2 Optimat system to function effectively.
All features
| Brand | Tetra |
|---|
Extended Product Information
FAQs
Can I use this in an aquarium larger than 100 liters?
This refill is designed for 50-100 liter tanks; it will likely be ineffective or depleted too quickly in larger systems.
How often do I need to replace the bottle?
Replacement frequency depends on your specific tank setup and CO2 requirements, but you should monitor the system and replace it once the 11g supply is exhausted.
Is this safe for my fish?
Yes, when used according to the manufacturer's guidelines, it promotes a healthy environment by increasing oxygen levels.
Does this refill come with the diffuser unit?
No, this is a replacement bottle only. You must already own the Tetra CO2 Optimat system to use it.
Will this help with algae?
By promoting vigorous plant growth, CO2 supplementation can help plants outcompete algae for nutrients, indirectly reducing algae issues.
Troubleshooting
No bubbles appearing in the diffuser
Verify that the bottle is fully tightened and that the diffuser membrane is not blocked by algae or debris.
CO2 levels seem insufficient for plant growth
Check that the tank size is within the 50-100 liter range and ensure there is adequate water circulation near the diffuser.
Pros and Cons
Pros
- Supports robust and healthy aquatic plant growth
- Helps keep aquarium glass and plants free of limescale
- Increases dissolved oxygen levels for healthier fish
- Simple replacement process for the existing system
Cons
- Requires the specific Tetra CO2 Optimat hardware to operate
- Not suitable for tanks larger than 100 liters
- Replacement bottles must be purchased once the 11g supply is depleted
Setup, Compatibility & Care
To install the 11g refill, ensure your aquarium filter is running to provide circulation. Gently remove the empty canister from your Tetra CO2 Optimat system and screw in the new refill until snug, following the specific instructions provided with your original device.
This refill is exclusively compatible with the Tetra CO2 Optimat unit. Maintenance is minimal: simply keep the diffuser membrane clean to prevent clogging from algae or debris. If you notice a decline in gas output, check the connection point for any signs of obstruction or loose seals.