What is a good watering/feeding schedule?

Hello and welcome to GD, At first, your plant dont need a feeding for minimum 4-5 week, She sits in a 26.5 l pot- so she has enough soil around to feed her for weeks. . You can give her aloe, or a aloe based root stimulatior.In my previous photoperiod grow i use 20 l pots and the plants dont needed any fertiliser in the hole vegetation stage(10 weeks). watch your girl, and if she gets pale or limy around week4 or later you can add Growing fertiliser ( N)until she stops stretching. when she stopped stretching you can start with blooming fertiliser (P+K). But always use half of the recommend amount, and look how she responds............................................................................. Watering regime; I start with 100ml , pouring around the plant, so the roots have to search for the water and spread. 100 ml should last for 3-4 days or longer. if water is used earlier then double the amount, and wait for 3-4 days. and so on. You can control it by lifting the pot when soil is dry, or putting on a scale, and noticing the dry-weigh of pot and plant. So you avoid overwatering. If you are unsure, just wait another day. In water and feriliser its like LESS IS MORE. A plant can handle to have less water and no fertiliser for weeks, but overwatering and overfeeding makes her sick. Happy growing, feel free to ask per pm