premier is a conditioner specifically designed for the planted aquarium. It removes chlorine and chloramines while adding potassium. premier is non-acidic and will not impact pH. Use at start-up and whenever adding or replacing water.

premier is a concentrated solution of potassium thiosulfate which removes both chlorine and chloramines. Although a thiosulfate-based conditioner is not recommended for saltwater aquaria because of the ammonia produced when it reacts with chloramines, it is perfect for the planted aquarium. The ammonia produced from chloramine by premier is predominantly in the ammonium form, and is thus rapidly scavenged by plants*. It also serves as a minor source of potassium.

Directions
Use one inner capful (7 mL) of premier  for every 70 US gallons (265 L) of water. premier may be added to the aquarium directly, but it is best if added to new water first. If adding directly to aquarium, base dose on aquarium volume. For exceptionally high chloramines concentrations, a double dose may be used.

Note: The aquavitro cap offers multiple dosing solutions depending on the size of your system. Each inner cap thread is approximately 2 mL. The inner cap contains 7 mL, while the outer ring contains 28 mL (35 mL when both are filled to the level of the inner cap.) When filled to the top, the cap contains 49 mL.