About & how this site is built

Aquarium stocking, heater, filter, and water-change calculators.

Who

Built and owned by Jeremy Panasuk, New Auburn, Wisconsin. Contact: jpanasuk@gmail.com. Jeremy is a data/software person, not a licensed veterinarian or aquatic biologist. These are planning tools, not professional advice.

How

The calculators use published rules of thumb from the sources listed on each page. Page text is drafted with AI agents (Cursor and local models) from those sources. Formulas are checked against the cited sources. If you spot an error, email jpanasuk@gmail.com and it gets fixed.

Why

The site earns money from Amazon affiliate links. That doesn't change the math.

Affiliate Affiliate disclosure: as an Amazon Associate, we earn from qualifying purchases — at no cost to you.