The world of Aquatic products and solutions to make fishkeeping easy in one single app! Welcome to Tetra Aquatics; your go-to tool for maintaining your aquarium or garden pond. Discover the helpful features for water testing, finding the perfect aquarium with our augmented reality and never miss a filter change with our handy reminder service.

• Check out the water parameters

• Project virtual aquariums directly into your living environment
• Combine many different aquariums and base cabinets
• Get detailed information about all aquariums and buy online

• Never forget to change your filter cartridge again
• Activate the timer with a touch and let e-mails remind you to change your filter cartridge

What’s New

Version 5.0.4

Bug fixes and performance improvements.

Ratings and Reviews

1.5 out of 5
89 Ratings

89 Ratings

Trevorfmoore ,

What have you done?

I have just installed the update and need to carry out a routine pond water test using the strips and mobile phone app that gave clear, easy instructions to photograph- dip-wait-photograph to get instant water quality results.
This upgrade is a disaster! Having used the previous version successfully for several years to test water quality I have no idea what to do or How to do it! I am not even sure if it is possible to use the camera and I don’t want to compare the strip with the complicated scale printed on the side of the container.
Unless the boffins are Tetra get this sorted quickly I will vote with my wallet.
It is not possible to give a no star rating!!

RobHind ,

Good overall, suggested improvements

I like the app generally, I struggle with visual colour comparisons and this does that for you, though I think the better the lighting the better the app test. The CO2 test I assume isn’t part of the 6 in 1 test or it doesn’t work properly, normally says at max 20 setting which had me panicking but does sometime give readings? My tank has tons of agitation and new air pump, bought before I realised but no difference ☹️. On iPad the save option is off the bottom of screen and I keep forgetting. Charts are great idea but limited to last four readings, would be good to have long term readings for trends, especially when first cycling the tank and doing multiple tests per day/week. Having all test types on one chart with different line colours would also be good. Option to retake pic would also be good rather than starting again when you click and camera goes out of focus.

Benmancxc1243 ,

Really useful for tracking tank water quality

At the time of writing this review I’m really surprised on the 14 reviews so far, most negative. This app I’ve used for a couple years and it works great! I use the 6in1 strips for my fresh water aquarium. It’s really easy to use just taking a photo of the test strip, match the colours, test your water, photo the strip again and match the colours, done.

Always works really well. I’m not sure how accurate the CO2 reading is thou as my 4ft tank has never been in the green ever, despite buying 5 different air pumps and air stones, 2 filters and a bubble tube at the back. The fish all seem fine and good health for years, so don’t understand how CO2 can still be so high

Apart from that I’d recommend this app

App Privacy

The developer, Tetra GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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