first grow

Day 4: Just started my first micro-grow 4 days ago with a 40x40x120 grow tent, 30W veg+flowering, soil. I know it is a sketchy setup, but I have little to no space in my apartment, and limited budget. So, after germination in wet paper(6 days ago, ready in 2), on saturday I've planted it and she came out of the soil the next day. It is growing fast and healty, I'll post some pics once back home. Do you guys think it will be useful doing topping on this, or I'd better avoid it and using only a "light" LST? Day 5: Yesterday evening my little girl was experiencing curling leaves, checked the RH and was at about 87% - 90%, temperature 25C. Because I've not overwatered her, I supposed the problem was the high RH, so opened a little more my ventilation hole and gone with a fan and this morning RH was about 62%, temp 23.5C. Let's see this evening if it is going well or not. btw, she is growing fast, at day 5 the second node is starting its growth with a new pair of leaves!