Hey there deegee, so im not sure what soil you use but most of the time it has some level of food to it...but it will run out after a few weeks. Whether you go with cannabis friendly nutes or regular home/garden store supplies you'll want some form of "grow" or all purpose plant food...something with good N levels and some P/K. If you can get ahold of a micronutrient that would be very advisable soon as you're using distilled water which won't usually have as many trace elements as a tap water would...copper, zinc, etc etc etc. Many people make use of sea products like kelp/seaweed extract also. And of coarse any root zone will make great use of mycorrhizal fungi product...make sure it specifies endo-mycorrhizal though as i believe that one is key to cannabis, and then feeding your roots help too like with the molasses or kelp as others mentioned.
Happy new year and happy growing. ✌️