- 30-day returns on unused items
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Details
A hanging glass CO2 indicator that shows carbon dioxide levels in planted aquariums through color changes in its test liquid.
- Hanging glass design hooks onto the aquarium edge
- No suction cup or extra mounting bracket needed
- Clear glass for viewing color changes from outside the tank
- Designed for planted aquarium setups
- Used together with a suitable CO2 test liquid
Who it's for: Planted aquarium keepers who want a simple way to keep an eye on CO2 levels in their tank.
Key benefits
- Follow CO2 levels at a glance
- Simple setup with no extra mounting parts
- Easy viewing of color changes from outside the tank
How to use
Our Policies
Unused items in their original packaging can be returned within 30 days of delivery.
US orders over $75 ship free; below that, shipping is $9.99. Other countries see the rate at checkout. If customs charges you on delivery, send us the receipt and we refund it.
You can return unused items in their original packaging within 30 days of delivery. Opened cosmetics can't come back for a change of mind, but we always replace or refund items that arrive damaged, defective or wrong.
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