Hi rickzski,
Our nutrient calculator is designed to simplify the calculations for commercial growers who don't grow autoflowers (that doesn't mean it can't be used with autoflowers). "Res" does equal reservoir and refers to the size of container you're using to mix your nutrients. In other words, it's the size of nutrient batches you make. If you do your nutrient mixing in a 5 gallon bucket, then your res size is 5 gallons. Then you just need to know how many times per week you make this batch. Typically it's 1-2 times with a water at the end of the week (over 7 days you would feed-feed-water).
Based on what you're using to grow, in veg, you will likely only need 5 gallons of feed formula for 3 plants, per week (maybe 10 gallons if closer to the end of the veg period). If this is the case, the simplest thing to do would be to set the res size to 5 gallons, with 1 feed per week,input the veg/flowering specs of your genetics, then print or pdf the veg chart. Then when your plants kick into flower, you'll probably need to make 2x 5 gallon batches per week. Adjust the number of feeds per week to 2 (with a 5 gallon reservoir) and print or pdf the flowering chart.
Now you have a customized feed chart for your specific grow.
I have to apologize, autoflowers have a component to them where they kinda do what they want when they want to, with regards to veg time. The print function helps a little bit with factoring in this.
Hope that helps,
Joel
Our nutrient calculator is designed to simplify the calculations for commercial growers who don't grow autoflowers (that doesn't mean it can't be used with autoflowers). "Res" does equal reservoir and refers to the size of container you're using to mix your nutrients. In other words, it's the size of nutrient batches you make. If you do your nutrient mixing in a 5 gallon bucket, then your res size is 5 gallons. Then you just need to know how many times per week you make this batch. Typically it's 1-2 times with a water at the end of the week (over 7 days you would feed-feed-water).
Based on what you're using to grow, in veg, you will likely only need 5 gallons of feed formula for 3 plants, per week (maybe 10 gallons if closer to the end of the veg period). If this is the case, the simplest thing to do would be to set the res size to 5 gallons, with 1 feed per week,input the veg/flowering specs of your genetics, then print or pdf the veg chart. Then when your plants kick into flower, you'll probably need to make 2x 5 gallon batches per week. Adjust the number of feeds per week to 2 (with a 5 gallon reservoir) and print or pdf the flowering chart.
Now you have a customized feed chart for your specific grow.
I have to apologize, autoflowers have a component to them where they kinda do what they want when they want to, with regards to veg time. The print function helps a little bit with factoring in this.
Hope that helps,
Joel