Free Delivery over £60 spend (See delivery page for full terms)

  • Shop

Home / CO2 Equipment / CO2 Kits
product review overlay image
CO2 Drop Checker Kit from Aquarium Gardens

Product Description

Monitoring and maintaining the correct CO2 levels in your planted aquarium is vital for a successful setup. The drop checker is a reservoir for indicative fluid that tells you whether you have too much, too little or the correct levels of CO2 for your plants.

Specially-designed to suit a professionals needs. 

Made of glass, for max reliability.

Supplied with 10ml Drop Checker Solution and Suction Cup

No mixing nor preparation required.

This is everything you need to start testing CO2 in your aquarium.

The solution will last around 6 months, if changed once per month.

Drop Checker Size:

  • Outside diameter:3cm
  • Height:5.5cm
Set up Guide:



How to install your CO2 Drop Checker

  1. Take your drop checker and fill the reservoir half way with drop checker solution.
     
  2. Using the suction cup, submerge the drop checker around 15cm below the water and stick to the aquarium glass sides.
     
  3. Based on the concentration of your CO2 in your water, the colour of the solution will change. This could take up to 2 hours before you get your first reading.
     
  4. Check the colour. Blue = too little CO2 concentration, Yellow = too much CO2 (dangerous levels for fish), Green = optimum levels of CO2 for plants and fish safety.
     
  5. Based on your reading, adjust your CO2 bubble rate using your regulator if required. Wait a further 2 hours for concentration of CO2 to change and check your readings again.
As a guide, usually between 1 - 3 bubbles per second through your bubble counter is usually enough to get a green reading on tanks up to 200 L. Adjust this according to your tank size and the colour shown in your drop checker.

TIP: You will need to turn your CO2 ON 1-2 hours before the lights come on to ensure CO2 levels are increased ready for the photo period.
 

Specifications

Product Code
5060386349273
Weight
0.1kg

Customer reviews

No reviews left yet
Write A Review

Monitoring and maintaining the correct CO2 levels in your planted aquarium is vital for a successful setup. The drop checker is a reservoir for indicative fluid that tells you whether you have too much, too little or the correct levels of CO2 for your plants.

Specially-designed to suit a professionals needs. 

Made of glass, for max reliability.

Supplied with 10ml Drop Checker Solution and Suction Cup

No mixing nor preparation required.

This is everything you need to start testing CO2 in your aquarium.

The solution will last around 6 months, if changed once per month.

Drop Checker Size:

  • Outside diameter:3cm
  • Height:5.5cm
Set up Guide:



How to install your CO2 Drop Checker

  1. Take your drop checker and fill the reservoir half way with drop checker solution.
     
  2. Using the suction cup, submerge the drop checker around 15cm below the water and stick to the aquarium glass sides.
     
  3. Based on the concentration of your CO2 in your water, the colour of the solution will change. This could take up to 2 hours before you get your first reading.
     
  4. Check the colour. Blue = too little CO2 concentration, Yellow = too much CO2 (dangerous levels for fish), Green = optimum levels of CO2 for plants and fish safety.
     
  5. Based on your reading, adjust your CO2 bubble rate using your regulator if required. Wait a further 2 hours for concentration of CO2 to change and check your readings again.
As a guide, usually between 1 - 3 bubbles per second through your bubble counter is usually enough to get a green reading on tanks up to 200 L. Adjust this according to your tank size and the colour shown in your drop checker.

TIP: You will need to turn your CO2 ON 1-2 hours before the lights come on to ensure CO2 levels are increased ready for the photo period.
 
No reviews left yet
Write A Review

Product Code
5060386349273
Weight
0.1kg

Customer Reviews

CO2 Drop Checker Kit CO2 Art

Item in Stock

Product Code 5060386349273

Everything you need to measure the level of Co2 in your planted aquarium.

  • Vibrant plants

    Ordered plants from here a few times and it has always been a great service. Plants are always healthy and packaged well. Excellent service and quick delivery

    Joe Dade / 23rd Jan 2025

  • Superb quality plants.

    Superb quality plants. Delivered quickly and packaged superbly. I won’t be going anywhere else to get my aquarium plants and aquascaping equipment.

    Phil Wilson / November 2024

  • Best UK Aquascaping

    Dave and the guys at Aquarium Gardens are without doubt the leaders in their field of Aquascaping. My wife and I have visited several times over the last couple of years and have always received fantastic advice and guidance. Two years ago we had one small tank, we now have three aquascapes all running CO2, this definitely wouldn’t be possible without all the support from the guys at Aquarium Gardens. Carry on doing what you’re doing because your business model is superb…..thanks once again Malcolm & Cheryl Orgill

    Malcolm Orgill / October 2024

  • Quick service, fantastic plants

    I have ordered from Aquarium Gardens for the first time after seeing them on social media. Well what can I say except WOW, the plants were a really good price, they arrived on time actually quicker than I expected! They arrived in absolutely fantastic condition as if I had picked them out myself, well packaged. The plants themselves were bigger than what I expected to get so definitely value for money and the root systems were well established, can't wait to see them get bigger in my aquariums. Will definitely buy from this company again.

    Sue Hall / 3rd Feb 2023

Our top brands
VAT Number: 202531463
© Copyright 2025   Aquarium Gardens All rights reserved