FZONE Aquatic CO2 Glass Drop Checker PH Momitor for Aquarium Plant Fish Tank Test CO2 Kit

Comes with drop checker, pH indicator liquid, a pH chart, and extra suction cups. No complaints here.

As an aquarium enthusiast, I'm always on the lookout for new tools and accessories to help me maintain a healthy and thriving tank. The FZONE Aquatic CO2 Glass Drop Checker is a recent addition to my collection, and I'm very impressed with its performance so far. The drop checker is designed to help monitor the levels of CO2 in your aquarium, which is crucial for the health of your aquatic plants and fish. It's easy to install and comes with clear instructions, making it accessible even for beginners. What I appreciate most about this drop checker is its accuracy. It provides a clear and easy-to-read reading of the CO2 levels in my tank, which helps me make informed decisions about how much CO2 to add or adjust. The glass construction is also very durable and high-quality, so I don't have to worry about it breaking or cracking easily. One thing to note is that the drop checker does require some initial calibration to ensure accurate readings. This may take some trial and error, but once you have it set up correctly, it's very reliable. Overall, I would highly recommend the FZONE Aquatic CO2 Glass Drop Checker to any aquarium owner looking for an effective and reliable way to monitor CO2 levels in their tank. It's a great investment that can help you maintain a healthy and thriving aquatic environment for your plants and fish.

I use this to dial in the amount of CO2 for my planted tank. It's easy to use and looks kinda cool in the tank.

Great little co2 checker I find Fzone products are a great quality and come well packaged they have become my go to brand my planted tank!

Does exactly what it say it can. Drop checkers have limitations, they’re a bit delayed. Don’t expect the color to change right away. If you want an upgrade, get some 4KH solution and mix some bromothymol blue to get a better solution than the one they include. Most people will be served well by this however.

Easily shows water CO2 levels with a visual indicator, at first my levels were too low, now they're a tad too high. The CO2 has dropped my PH down to 6.0, I will readjust my flow rate so that the Ph is little bit higher and the color of the drop checker should turn a tad bit darker. The CO2 drop checker is very simple and easy to help me make sure my plants have the proper amount of CO2 that they need, I actually have only had them in my tank for 3-6 days and already had tons of new growth!

I love the value of the FZONE Aquatic CO2 Glass Drop Checker, the package comes with the drop checker solution which is great! My setup is mostly ADA (tank, light, aqua soil, lily pipes) except the CO2 drop checker which to me was kind of expensive ($65 including the solution). I went with a different brand and the sucker cup was not strong and caused a mess when the checker fell to the tank bottom. The sucker cup comes with FZONE is strong and works well. Not long after I set it up, the blue solution changed to green which was what I would expect.

Very nice. Well made, and the included reagent works like a charm. Great value as always from Fzone!