Description
GLA Glass CO2 Drop Checker Kit
The GLA Glass CO2 Drop Checker Kit provides a simple and reliable way to visually monitor CO2 levels in planted aquariums.
Designed for accuracy and ease of use, this glass drop checker helps maintain stable CO2 levels for healthy aquatic plant growth while offering a clean, unobtrusive appearance inside the aquarium.
This complete kit includes a ready-to-use 4° dKH CO2 indicator solution, allowing quick setup without additional mixing or preparation.
Features
- Complete Ready-to-Use Kit – Includes drop checker, suction cup, and indicator solution
- 4° dKH Indicator Solution Included – Designed for accurate planted aquarium CO2 monitoring
- Premium Glass Construction – Clear glass design for clean aquascape integration
- Visual CO2 Monitoring – Observe aquarium CO2 levels through color indication
- Easy Installation – Includes suction cup mount for secure placement
CO2 Color Guide
- Blue: Low CO2 level – increase CO2 injection
- Green: Approximate optimal CO2 level (~30ppm)
- Yellow: Elevated CO2 level – decrease CO2 injection
How to Use
- Rinse the drop checker prior to use.
- Fill with the included CO2 indicator solution.
- Install inside the aquarium using the included suction cup.
- Allow approximately 2–3 hours for the solution color to respond to aquarium CO2 levels.
Package Includes
- GLA Glass CO2 Drop Checker
- Suction Cup Mount
- 2oz Ready-to-Use CO2 Indicator Solution
The GLA Glass CO2 Drop Checker Kit provides a clean and dependable solution for planted aquarium CO2 monitoring.
Customer Reviews
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Same as my ADA drop checker, exact same!
Very happy with GLA once again. Great price and high quality. ?
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Perfect fit for my 60cm
This is nice in that it scaled well for my 60cm tank. Very thick glass and very reminiscent of ADA’s drop checker, much cheaper though! Loving it!
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Its very well made and I love the size!
Loving this vs the old lady dress looking style I broke lol, I dont know how else to describe it, but the old one was like an old ladies dress and it was unnecessarily HUGE! This one is small and the glass is thick!
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Beautiful and functionally perfect.
This is my 3rd order from GLA and it has been such a great experience. This was the last piece I needed to finish my co2 system from GLA. Such an easy simple way that helped me dial in my co2 bubble rate on the regulator. Only took me 2.5 days to dial in my levels into the green. Very nice glassware I’ll say. I’ve seen similar versions at my local fish store but they had more of this larger squirt looking bottom end. I liked the small shape with the angle bottom as it just looks more modern vs that big bell shape. I did notice this glass is thicker than the larger ones at my LFS, so hopefully that’s a good thing. Even came with a pipette to inject the 4DKH.
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Better than ADA by a long shot.
My 90p uses an ADA drop checker that was double the price of this and its exactly the same. The difference is GLA comes with real 4DKH solution. ADA comes with ph reagent. Needless to say I will not be buying any ADA glassware moving froward.
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Very very nice glassware.
Ive bought a few of these over the years. I have lost almost al of them. From my experience they were all exactly the same when you look at the shape of them. However when you look at this one it has a very nice modernized design, very similar to ADA, you cant even tell the difference. I went to Aquaforest jst to compare them, they were identical! ADA charges $60! This is half the price and the very same exact thing. EXACTLY! This is a terrific deal and even better because it comes with real 4DKH solution, win!
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Works great!
Love this drop checker. I bought this because it looks just like my ADA drop checker. Side by side you cant even tell which is which! Very nice GLA!
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Great Drop checker
Suction cup is good, and it looks good on the tank. The quality looks very good
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Easy to use
This drop checker is extremely easy to use and set up. I am using with the 4dkh solution and it works great.
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Easy to use
This drop checker is extremely easy to use and set up. I am using with the 4dkh solution and it works great.
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Adjusting co2 levels was easy with this!
My first time using co2 and this is a must have piece. Removes all the guesswork in adjusting your co2 levels. Make sure to grab the 4DKH!
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Excellent
Very good quality and fast shipping. I ordered on Thursday and it arrived to my on Saturday! You do need to buy the 4DKH solution with this. You will be glad y ou did because GLA 4DKH solution is super good, I mean really good quality. You find it here,https://greenleafaquariums.com/products/4-dkh-lab-certified-analytical-standard-118ml.html If you get these two its a winning combo. You cant ever go wrong with GLA. Loyal customer here since 2007:) Thanks guys!
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Very good quality
Set this up with GLA 4DKH solution and it has been super responsive. Im sure all the glass vessels are the same so I think it has mostly to do with GLA's 4DKH drop checker solution. The 4DKH GLA makes is the most high quality accurate 4DKH solution I have used and I have used every single one. I tested the 4DKH with my HANNA instruments tester and its the most accurate 4DKH solution on the market. This is my 4th drop checker from GLA and Im always satisfied.
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Fantastic working drop checker
Excellent quality and very happy with the drop checker. The really great thing is the 4DKH GLA makes that you will require for this drop checker. GLA makes the best 4DKH solution I have ever used. Cant go wrong with this winning combo. Very happy:)
