If you're looking to Download Aquarium Journal on your Chromebook laptop Then read the following guideline.

You need Aquarium Journal to keep up with your aquarium’s life! You can create a journal for your aquarium (actually one per aquarium if you are deep into this hobby) and start taking notes! - Keep track of water parameters: after taking measurements, add a special Water Parameter entry in the journals and note all the values. - Add a note (and an optional photo) daily to track daily tasks: feedings, observations, fish count, worries. - Save a copy of your store receipts, store name, date and price of each equipment pieces and live stock In no time, you will have a complete logbook of everything that happened in your aquarium! Use it across all your iOS devices: data will stay in sync using iCloud.