Glass CO2 Drop Checker – CO2 Monitor Kit for Aquarium Planted Tank CO2 System (Drop Checker with Solution)

I like the fact that this drop checker is of a different design compared to the regular style. It’s made of good material and is nice to look at. One drawback is that it takes more solution to fill to level that’s recommended but it’s a lot easier to fill compared to the other designs. it’s been very accurate thus far on my CO2 levels so I’m happy with it.

works great. I also have a ph meter it seems to do a good job tracking along with the meter

The drop checker looks good, and blends seamlessly in my tank. My tank use a white frosted background, which pairs well with this drop checker - it makes the color stand out. My only issue is its a bit of pain to fill the drop checker with solution, or when its time to empty it. I find a syringe to be useful here. Also if you aren't careful, air bubbles can get caught in the drop checkers vent, which may prevent an accurate reading. I noticed this happen sometimes when performing a water change. Other than that, works fine.

Most drop checkers are hard for me to fill. This was so easy. I held the drop checker at an angle, almost sideways, then opened the bottle of solution and inserted a plastic pipette to half fill the drop checker with the solution the first time. The second time I just held the drop checker at an angle, opened the flip top of the 60ml bottle of solution and filled it up half way. Faster and even easier that way. It's well made and strong. You have no glass tubes to worry about breaking off and cutting your hands. It's very easy to see the color. A lot of drop checkers come with one little flimsy suction cup that sticks to the glass about a week, then you have to buy another one in order to even use the drop checker. This one comes with 2 well made, very sturdy suction cups. I liked this JARDLI Drop Checker for $10.49 so much, I ordered a 2nd one and received it today. I just put it in my 45G high light planted tank. It can be well hidden behind plants, but I think it's so pretty I put it where it can be seen and so I can look at the solution color and know how my CO2 is doing. I'm extremely happy with this great product.

Very nice, elegant. But initially I have problem maintaining the suction cup in place. It turned out that it will only stick plemenskih on glass. If it's a plastic surface (one side of my aquarium is plastic for the internal filter system and the opposite side of my co2 difusor) it will keep falling off. A tip to make the suction cup sick better : warm it with hot water, making it softer, then sick it to the clean dried glass surface, by partially emptied the tank. Tip to fill the drop checker: use a 1ml syringe. Nonetheless, since I have a mano tank, every little space is precious to me. So, I am considering using an over the aquarium hanging drop checker (upside down U shaped) instead.

Love this thing. Looks cool, great size for my 29 gallon. Easy to set up, need to get another one for my other tanks

The color was blue when I dripped it from the bottle, and it remained blue in the fish tank. I measured the PH level using a digital device, and it did not correspond to the blue color. I believe there is an expiration date on the liqued, which the seller did not mention on the box. The glass is perfect.

These are great. I like the circle design as it’s more unique. The drop checker works perfectly and is well made. I made it clap on a handstand out of pure joy at how much I enjoy this checker.

I'll spare you any images but despite the narrow neck, 2 separate mature fish managed to get inside the drop checker and died. It is not possible to get them out once they are in. Only use this device for fish SIGNIFICANTLY larger than the hole.

Es estético y discreto

Excelente producto, muy buena calidad de materiales

Great Product, great quality and great price

Lastima que no viene con el liquido para medir el CO2 y hay que comprarlo por separado, tardó un poco el pedido y cuando llegó, por no leer, tuve que esperar a que me llegara el indicador.