Terms & conditions

By using Aquarium Substrate Calculator you agree to the terms below. If you do not agree, please do not use the site.

What this site is

A free collection of aquarium calculators provided for general planning purposes. There is no account, no subscription and no guarantee of continued availability — the site may change or be withdrawn at any time.

Results are estimates

Every figure the calculators produce is an estimate derived from your inputs and typical material densities. Actual bag weights vary by manufacturer, grain size, moisture content and how firmly the material settles. We do not warrant that a result will match any specific product, and we recommend checking the label on the bag before purchasing.

Not professional advice

Nothing here is veterinary, water chemistry, structural or building advice. Substrate depth, tank weight and water volume all interact with your stand, your plumbing and your livestock — if a calculation has implications for safety or animal health, confirm it with a qualified professional before acting on it.

Acceptable use

• Do not attempt to disrupt, overload or scrape the site.
• Do not reproduce substantial portions of the content without permission.
• Do not misrepresent the calculators as your own service.
• Do not use the site for any unlawful purpose.

Intellectual property

The site's original text, design and code belong to Aquarium Substrate Calculator. Third-party names and product marks are the property of their respective owners and are used descriptively.

External links

Pages may link to other websites for reference. We do not control their content and are not responsible for it; a link is not an endorsement.

Limitation of liability

To the extent permitted by law, Aquarium Substrate Calculator is not liable for any loss or damage arising from reliance on a calculator result, from inability to access the site, or from content on third-party sites we link to.

Changes

We may update these terms; the date at the top reflects the latest revision. Continued use of the site after a change means you accept the revised terms.

Contact

Questions about these terms go through the contact page. See also ourprivacy policy.