Info: Seachem Betta Basics Dosing Instructions

Use with each water change. For best results also use 2–3 times per week. Add 1 capful (5 mL) per each 1.25 L (1.25 quarts) of water. In Betta-only bowls (i.e. no plant) use 1 capful per 4 L (1 US gallon) with water changes.

Betta Basics™ Dosing Table