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Legal

Terms of Use

Last updated October 2026.

Acceptance

By using this site you agree to these terms. If you do not agree, please do not use the site.

Accuracy of results

The calculators use standard geometric formulas and published conversion constants. Results depend entirely on the measurements you enter and on how closely your tank matches the ideal shape. They are estimates, not guarantees.

No warranty

The site and its content are provided as is, without warranty of any kind. We do not warrant that results are error-free or suitable for any particular purpose.

Structural responsibility

Filled aquariums are heavy. You are solely responsible for confirming that your stand, floor and building can support the weight of your tank, water, substrate, rock and equipment. Weight figures on this site cover water only.

No professional advice

Nothing here is veterinary, engineering or professional advice. Dosing and stocking decisions remain yours.

Acceptable use

You may use the calculators freely and embed them on your own site using the codes we provide. You may not scrape, copy or republish the site's content, or interfere with its operation.

Limitation of liability

To the fullest extent permitted by law, we are not liable for any loss or damage arising from use of this site or reliance on its results.

Changes

We may revise these terms at any time. Continued use after a change means you accept the revised terms.

Contact

Questions about these terms can be sent through the contact form.