Pro Shrimp

Colombo CO2 Indicator

Colombo CO2 Indicator - Main image
Colombo CO2 Indicator - View 2Colombo CO2 Indicator - View 3
$9.27 $14.49 In stock

Category: Aquarium CO2

Colombo 3-in1 CO2 Indicator

  • CO2 Indicator / permanent test
  • Monitor and adjust the right CO2 levels in your tank
  • Unobtrusive design
Confirm the order

Check the specification, quantity and total at checkout.

Before work begins

Factor in processing and transit time when planning your order.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
Refund requests

Use your order reference when explaining the issue to the store.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery for your items

Check the destination and shipping charge before payment.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Sending an item back

Ask the store for instructions before packing and returning the item.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Nicholas V. ★★★★★

The little window changes color clearly enough that I can tell at a glance if my CO2 is in the right zone, and it takes up barely any space in the tank. I’ve had it running for a month now with no issues.

Abigail Q. ★★★★★

Installed this in my 60-liter tank and the color reading is immediate, no waiting for hours like with other tests. The compact glass bulb fits right inside without being an eyesore.

Sofia ★★★★★

The color shift is easy to read against the glass, and it stays put on the suction cup even with my filter flow. Took a day to settle in, but now I can dial in the CO2 without guessing.

Related Products