Aquarium Carbon Dioxide CO2 Monitor Kit pH Indicator for Planted Tank

This is a great glass drop checker. It's modern and sleek design adds a neat level of suffistacated aquarium functionality and will work wonderfully with glass Lilly pipes or standalone stock black. I gave it five stars because it came earlier than expected and at a Aesthetic quality I had wanted. My only con is that, like most drop checker solutions, the one that came with this product has outdated directions, or ones that experienced artists will find wron as it does tell you to add aquarium water or (as best I can figure out) to use the solution as a standalone product for Co2 measurement. Well, it's a concentrated solution, so using either of these methods I believe will provide false accuracy. So, with a little planning ahead that problem won't affect you. Just purchase a 4dkh water solution as well and use it in place of the directions. If seller would provide correct information regarding this solution it would make hobbyist's new to Co2 have a much easier time. I have no other problems than this small bit of information and still believe skier deserves 5 stars.

Works great. Comes with well-made glass, suction cup, pre-mix solution of 4dkh and a plunger/needle thing-y to easily insert the solution into glass. Oh yeah, I almost forgot to mention it comes in a really nice little box too.

Good quality parts and does its job. Remember to clean tank where suction cup will attach. I forgot and was fortunate to have the bell sink and land right side up without contamination. After cleaning the suction cup has held fine.

I have a plastic orb drop checker and have been wondering why the solution isn't reading the CO2 levels-it is always blue, so I got this one as a backup and within half an hour it was confirming that the CO2 levels were good with a nice green color. Beautiful shape and I was afraid my Kuhli loaches and corys would go into it-but they haven't. My only regret is not getting one like this earlier. Great price, super fast ship and the indicator solution works-don't wait or shop around, this one was the best price I could find and is glass, not plastic.

The glass is well made. The suction cup seems to work well. The fluid bottle that I received was empty, so lookout for that. No way to contact seller.

This is the best one of the 3 I have for fitting on a rimless tank. It has a small bump on the bottom side to keep it straight on the glass.

Just got this in the mail and it didn’t even come with the CO2 indicator solution, just an empty bottle.

The convenient solution made for a quick installation. The suction cup holds nicely on a clean aquarium wall. I love the globe shape over the traditional model. For the first few days it seems to give the same reading as my pH probe, so I believe it works well.