i agree no nuits yet the soil has enough for a month or two depends on brand mine are about 8 weeks old ive only used fert once when they got a bit N defi apart from that i just change the soil on the last re-pot when they no longer need re-poting to biger pots i will give it 4weeks with no fert/nuits then i will probly start using......i prefer to rely on the soils own fert through ot the veg and first part of flower rather than me adding and going over the top...
(give them a good flush or a re-pot) (this is only my advise and you do not have to take it) oh and yes its very hot/warm humid in your g/room

KEEP growing and GOOD luck M8ty