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Enter your reservoir size and the feeding rate from your nutrient's label, and get the exact amount of each part to add — in milliliters and teaspoons — at full or reduced strength.
1. Reservoir size
2. Strength
Seedlings and young plants usually start at a reduced strength. 100% is the full label rate.
3. Label feeding rate
Copy the rate for your crop stage from your nutrient's feeding chart.
Enter a reservoir size and at least one nutrient rate to see how much to add.
Amounts scale directly from the rate you enter, so they are only as accurate as that rate — always use your nutrient's own feeding chart, which varies by product and crop stage. Teaspoons are US measures (1 tsp ≈ 4.9 ml); use a syringe or graduated cylinder for small amounts.