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 Nano CO2 Drop Checker Kit

Complete Nano Drop Checker Kit For Planted Aquariums

£10.99
Complete Nano CO2 Drop Checker Kit
 

Key Facts

  • Small size drop checker and suction cup, perfect for small or nano aquariums.
  • 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

Nick P. Verified Buyer 26th Oct 2020
The drop checker is great, however, the solution that came with it appears bad, it is green straight out of the bottle rather than the blue it should be. The drop checker is great, however, the solution that came with it appears bad, it is green straight out of the bottle rather than the blue it should be.


Small logo for CO2 Supermarket
Reply from CO2 Supermarket
This happens frequently and is because the solution reacts with the CO2 levels within the bottle. If you put it into the drop checker and leave it for a few hours you'll see it changes back to blue again.

Edward C. Verified Buyer 23rd Sep 2020
Quality drop checker, working well. Quality drop checker, working well.
David S. Verified Buyer 19th Sep 2020
Good stuff. Drop checker still going. Solid build. Good stuff. Drop checker still going. Solid build.
Mr V. Verified Buyer 1st Sep 2020
Quality excellent would buy again Quality excellent would buy again
Stanimir H. Verified Buyer 14th Aug 2020
Really good color also verry reactive it takes minutes to change colour, not like other brands that takes hours with them. Really good color also verry reactive it takes minutes to change colour, not like other brands that takes hours with them.
John T. Verified Buyer 13th Aug 2020
Nice size for my smaller tank quite unobtrusive Nice size for my smaller tank quite unobtrusive
Graham R. Verified Buyer 10th Aug 2020
Works perfectly, easy to use. Works perfectly, easy to use.
Niels G. Verified Buyer 13th Jul 2020
Works as promised. Very well shipped to France. With very good setup instructions Works as promised. Very well shipped to France. With very good setup instructions
Ionut C. Verified Buyer 8th Jun 2020
good drop checker kit good drop checker kit
Daniel R. Verified Buyer 23rd May 2020
Easy to use and quite accurate solution. Easy to use and quite accurate solution.
See more reviews  Loading
Photo of a Nano 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