I created a Google spreadsheet with the pond volume calculations. At a depth of 13 inches our pond holds 268 gallons or about 20.6 gallons per inch.

Beckett Ammonia remover will not work with ammonia test kits based on a Nessler Reagent. Definition of Nessler Reagent: an aqueous solution of potassium iodide, mercuric chloride, and potassium hydroxide, used as a test for the presence of ammonia.

The Ammonia remover is compatible with Salicylate reagents.