Free UK Shipping
On Orders £30+. Next Day on Orders £80+
Same Day Dispatch
Weekday Orders Placed Before 3pm
Free Returns
100% Satisfaction Guaranteed
Lifetime Support
With Extended Warranties
Free UK Shipping
On Orders £30+. Next Day on Orders £80+
Same Day Dispatch
Weekday Orders Placed Before 3pm
Lifetime Support
With Extended Warranties
Home > CO2 Monitoring > Drop Checker Complete Kits > Complete CO2 Drop Checker Kit

Complete Drop Checker Kit For Planted Aquariums

£11.99
Complete CO2 Drop Checker Kit
Sorry, out of stock Notify me when it's in stock
 

Key Facts

  • Regular size glass drop checker and suction cup.
  • Pre-mixed drop checker solution using 4dKH water.
  • Accurately monitor CO2 levels in your aquarium.
  • Changes colour to reflect CO2 levels.
  • Removes guesswork of how much CO2 is required.
  • Easy to use and install.
 

Description

A drop checker is an essential part of dosing CO2 in your aquarium. Without one, you would be guessing at how much CO2 you should be dosing for your aquarium. A drop checker removes the guesswork.

The solution in the drop checker changes colour to indicate the level of CO2 in your aquarium water; blue indicates a lack of CO2, yellow indicates too much CO2, and green indicates the desired level of CO2. Depending on the colour of the drop checker you can adjust your CO2 dose until the desired level of CO2 is reached.

The drop checker should be used in conjunction with a bubble counter so that fine adjustments to CO2 dosing can be achieved. Always make small changes to CO2 dosing, particularly if increasing the dose.

The kit includes pre-mixed drop checker solution, which is added directly to the drop checker. The solution comes in a 15ml dropper bottle for ease of use. The solution will last 6 months if changed on a monthly basis.

Instructions

  • Turn drop checker up-side-down so that the curved bend is at the bottom.
  • Add 5 drops of drop checker solution.
  • Slowly rotate the drop checker so that the solution enters the bulb.
  • Repeat the above steps until the bulb is 2/3 full of the solution.
  • Attach the suction cup to the drop checker.
  • Press the drop checker inside the tank 3 inches below water level, ensuring you have air trapped inside the main body of the drop checker.
  • Try to position in area of aquarium where CO2 bubbles from the diffuser will not enter the drop checker and give inaccurate readings.
  • Wait at least 6 hours for colour to accurately reflect the CO2 levels in the aquarium.
  • Adjust CO2 dosing in accordance to drop checker colour:
  • If the colour of the solution is yellow it indicates too much CO2 is present - reduce your CO2 dosing.
  • If the colour of the solution is blue increase CO2 dose in small increments.
  • If the colour is a light green you have the correct CO2 dosing.
  • Leave drop checker in aquarium for constant CO2 monitoring.
  • Change drop checker solution at least once every 4 weeks.
  • Click here to read the full CO2 Drop Checker setup guide
 

Customer Reviews

Average Rating

Individual Reviews

Ben H. Verified Buyer 20th Jan 2022
A very handy little gizmo! A very handy little gizmo!
Graham T. Verified Buyer 14th Jan 2022
Received as part of the co2 system and didn't know what it was to start with, but read the instructions and realised how useful this little thing is! Completely removes guesswork with the dosing levels Received as part of the co2 system and didn't know what it was to start with, but read the instructions and realised how useful this little thing is! Completely removes guesswork with the dosing levels
Mark W. Verified Buyer 27th Dec 2021
Great product, easy to set up and see. Great product, easy to set up and see.
Paul R. Verified Buyer 10th Nov 2021
Very good product, it does what it said on the website. Your instructions are also very easy to follow. Many thanks. Very good product, it does what it said on the website. Your instructions are also very easy to follow. Many thanks.
Iain R. Verified Buyer 6th Nov 2021
A very useful item to get the co2 levels right A very useful item to get the co2 levels right
Robert M. Verified Buyer 1st Nov 2021
Excellent piece of kit really useful addition Excellent piece of kit really useful addition
Angeliqa M. Verified Buyer 9th Oct 2021
Good price and nice in the aquarium. Good price and nice in the aquarium.
Graham S. Verified Buyer 30th Aug 2021
Gives peace of mind that the CO2 levels are good. Gives peace of mind that the CO2 levels are good.
Dave H. Verified Buyer 18th Aug 2021
Very useful addition and eliminates any guesswork when tuning the co2 level. Very useful addition and eliminates any guesswork when tuning the co2 level.
Ian W. Verified Buyer 3rd Aug 2021
The glass piece was broken upon receipt and I contacted co2 supermarket and they sent a replacement that arrived the next day. The product works well but unfortunately I can't give 5/5 due to the first being broken. The glass piece was broken upon receipt and I contacted co2 supermarket and they sent a replacement that arrived the next day. The product works well but unfortunately I can't give 5/5 due to the first being broken.
See more reviews  Loading
Photo of a CO2 Drop Checker Kit
click image to view full screen

Photo Gallery

Cart Activity

Someone added a product to their cart

View Product

Someone added a product to their cart

View Product