Disclaimer

Estimates, not guarantees

Every calculator on Gallons and Fins produces an estimate from the numbers you enter and the formula shown on its page. Real results depend on measurement accuracy, product strength and conditions we cannot see. Always follow the product label or official rules where they differ from our estimate.

Fish health

Our calculators and guides cover water arithmetic and general water quality. They do not diagnose disease. Follow treatment and medication labels exactly, and for sick fish, consult a veterinarian with aquatic experience or an experienced aquarium professional. Never use medications on fish intended for food unless the label permits it.

Independence

Gallons and Fins is independent. We are not affiliated with or endorsed by any manufacturer, retailer, agency or organization we mention or link to. Product and company names are used only to identify them and belong to their owners.

Advertising

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Affiliate links

Some guides contain a small number of clearly marked links to Amazon search results. As an Amazon Associate I earn from qualifying purchases. See our affiliate disclosure.