GH Calculator - PPM Levels / Add Backs - Autoflowers

Its not a straight PPM per week. All plants will be different and grow differently with different needs even the same strain's. If a plant is a fast grower it might need an additional 100 ppm by week 5 compared to the slow grower. If you go by a set number in stone you will most likely run into either deficiencies or toxicities. You need to adjust according to how much she eats/drinks, Check the PPM's and adjust your add-backs or water changes( should be once a week in flower) according to if the ppm reading is higher or lower from the previous adjustment. Love the active spreadsheet. Keeping the same feed chart ratio is key to a healthy plant that has all of her needs. Another thing to consider is when you change your temp/humidity the plants needs for PPM's will be also changed. When a plant drinks it does not choose what to "Eat" but more takes in whatever comes with the water. The water eventually makes it to the leaves and evaporates(transpiration) with a higher temp and lower humidity the plant will transpire more which in turn she will drink more. By drinking more she is taking up more nutrients and if she is unable to process the extra nutrients she will start to get a toxicity. Being unable to process the nutrients they get built up in the plant and in the bucket of water which will make your PPM's go up.

Looks good to me! I’m an American than runs EC not ppm, but you will see the results or issue in about 2 weeks