Hello, if you have a fan in your space i expect you will need to water every 2-3 days, no fan perhaps every 5, but check the top of soil for dryness. I also use fox farm and personally don't give any in the first 3 weeks of fresh soil, but if you do keep it at like 1/4 strength. If you go to fox farms website they have feeding schedule for soil, coco etc. But i also like to add a calmag supplement on top of their "trio" ... i had lots of leaf color problems solved by adding calmag and making sure my ph was correct.
Happy growing ✌️