You are downloading the Akvárium XAP file v18.104.22.168 for Windows Phone. Akvárium is a free and useful Lifestyle app: The application allows you to collect measurements of the chemical properties of the water in the Aquarium. The measured values are color-coded ... You can now download the offline XAP file to install & try it.
Download Locations for Akvárium 22.214.171.124 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Akvárium XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.