Fluval A7551 CO2 Indicator Kit Review

After three tries the gauge stayed attached to the tank. The first two times he broke free and swam away. Finally, I scraped off the part of the aquarium where I placed the algae indicator and it stuck. After about 24 hours he registered the CO2 status. It works and is inexpensive, but the guide is still in its infancy. Overall I would recommend if you want to get a feel for the CO2 levels in a low tank setup.

I think the biggest problem is that it's not as easy to read as a more conventional chess board. I'm not sure what problem Fluval was trying to solve with the white background, but they made the product less useful. I haven't had any leaking issues, but I did have to replace the suction cup. The one that goes with it just falls off. Once or twice after it popped out, the liquid was diluted with water from the tank, rendering it unusable. In the end I settled on a more traditional validation…

When it comes to CO2 indicators, the choice is limited. I only chose Fluval because it was readily available from Revain. It was easy enough to set up. I added the indicator solution, turned it upside down and added it to my aquarium. It took a good 6 hours for the solution to turn green. Now I have no fish in the aquarium, only plants. It must work because one day I connected my CO2 tank but forgot to open the valve. There was no CO2 in my tank all day. When I got home from work, the solution…

Product works and is good for a quick reference, especially for beginners. I can easily see what color it is from across the room or even from another room. If I look and see that it's light green I can make adjustments before the fish show any signs. Or, if it's blue, turn it on. It should not be used to get an exact value, there is no indication of what the actual PPM is. If you're looking for actual CO2 readings, make sure you have pH and KH liquid tests available. Use the online calculator…

I bought this for my first CO2 system and it seems to be working fine. Someone else wrote that after filling it goes slowly and they were in place. This is key to keeping fluid where it's needed. I've also found that turning and tapping lightly at the same time also helps. Once in the aquarium it took about 24 hours to start reading and it really works. I got a bright green with CO2 at about 1 bubble per second and got a little darker after bumping it to just under 1/sec. have reduced. However,

I mainly use Fluval or Eheim products. The reason is customer service. Fluval excelled in this product. The dropper arrived with an empty bottle of indicator liquid. Judging by the packaging, everything in the box was leaking. Now I could send it all back to Revain for another one or call Fluval for a warranty. I decided to call Fluval. Your customer service is top notch. I emailed Fluval regarding the issue and provided my Revain account. Soon after (same day mind you) I received a reply that…

The design makes it very easy to read and looks pretty cool and modern. Basically, this product works like this.1. Remove the cap and pour in 1ml of the provided solution (fill to the line, easy).2. Put the cap back on the base (with suction cup) and slowly turn it over so the tip is facing up.3. Place in the aquarium, preferably in a place where no air bubbles can be trapped underneath that could spoil the result.4. Give it a few hours first to get the right readings. A few placement tips:…

only got the item today so I don't have much info on the accuracy or anything but thought I'd jump in and tell the world say difficulties that I have already had to go through with this product. Firstly, the sticker that came with it didn't have any glue so I had to tape it down - it looks crappy. Also, I'm concerned my fish might knock it off as I have some fairly large 4-5 inch fish that go crazy when fed. The suction cup doesn't attach well to the display, so I'm concerned. They could…

I've read reviews on this kit and noticed that a lot of people have had problems with fluid leaks. I've just started using the Fluval 88g C02 kit and wanted to know how much CO2 is going into the tank. I have been operating tank systems for many years, but avoid CO2 mainly for cost and maintenance reasons. The Fluval kit allowed me to get CO2 relatively cheap in the short term, so I could decide if I wanted to keep it long term. So I wanted a simple verification program without having to mix…