every week: check the water level in your vessel if water is 1 inch from the bottom, add purified water to just below the “REFILL" or "MAX" line add ~ 2 half-full droppers of plant food (ONLY if you are adding water) prune away dead or dying leaves Every 5-6 weeks and/or once you fully harvest your plant: rinse out and clean the vessel and cup by hand or in your dishwasher wash the water wick with soap & water or discard for a new wick refill the vessel with fresh water up to the "REFILL" or "MAX" line and add 4 half-full droppers of plant food before introducing a new seedling