Canna Tap for Canna 5L & 10L Containers Canna - One of hydroponics most trusted brands. Used by both amature and professional growers everywhere Developed and perfected over many decades Used for plants grown in pots of soil in a hand-fed or run-to waste feeding system. Formulated for use in a plant's vegetative cycle Works with all types of water Perfect for use with the range of Canna boosters and additives