Calculator data
Values entered into the calculators are processed locally in your browser. The current calculators do not require an account and do not save or transmit those measurements to us.
Basic service logs
The hosting service may process standard technical information needed to deliver and protect the site, such as request time, browser type and approximate network information.
Analytics and advertising
Analytics or advertising services are not active in the current version. If they are added, this policy and any required consent controls will be updated before activation.
Contact
Do not send private aquarium-shop account details, passwords or payment information. Use the contact page only for site feedback, formula corrections or general questions.
Last updated: 24 August 2026.