Thrive C is an all-in-one liquid fertilizer formulated for low tech planted aquariums. The term “low tech” refers to planted aquariums with lower lighting and no CO2 injection. Low tech setup, aquarium plants typically need less available nutrients so the aquarium doesn’t develop a buildup of excess nutrients causing algae growth and water instability. The formula for Thrive C still contains the necessary micro and macro nutrients, but in reduced amounts. This formula also contains a source of carbon for optimal growth in low tech planted aquariums. This non-glut based source of bio-available carbon provides 2 to 3 times the amount of carbon compared to other carbon supplements. The recommended dose while using Thrive C is 1 pump per 5 gallons, 1 to 2 times per week or as needed. 20 to 30% water changes are recommended weekly depending on your tanks specific needs.