1st Grow - Auto - DWC

Setup : 60*90*140cm (2*3 x 4.5ft) tent (two compartments, one 60 x 60 cm (2 x 2 ft ), the small one is 30 x 60 cm ( 1 x 2 ft ), the wall between the two compartments beeing removable ). -> counting 20cm (8inch) distance to lamp minimum the plant can be 70cm high (2.3ft). 60cm is prefered (2ft) 19 L (5 Gal) DWC bucket with 200Lph air pump ( no automatic top feeding system ) 1000W kingled aliexpress lamp ( which is actually 250W @ the wall according to sheet spec ). carbon filter and a 40W Fan extractor ( air extraction is 320m/h ) EDIT From D5W5 : i do have the real consumption of the setup : lamp (veg mode) : 120W lamp (flower mode) : 85W lamp (both mode) : 200W Extraction + airpump : 85W i'm only using both mode on the lamp for the week 6, as this is the transitioning point veg/flower, and i guess the plant could use both spectrum ========================================== One seedling is NL, other purple bud, both from White Label (auto). one ended up dying ( next week ), and if i remember well, i kept the purple bud. more on this next week. PS : i'm righting this diairy while i'm currently on end of week 5 ================================================ Day 1 ( picture #7 ) : i don't believe i can consider them sprouted, the seed is still attached to the main root. i believe i didn't put the seed deep enough. Watering with tap water ( 7ph ), solution is ready in the bucket at 5.8ph Day 3 ( pictures #8-9 ) : it officially sprouted, the seed is still attached, which is a problem, as we can already see the first node ( #9 ). I removed the seed with a bit of saliva, trying not to hurt the plant, seems to work. Day 5 (pictures #10-13) : the plant look a bit whitish, i'm wondering if it's not lightburn ( EDIT from week 2 : i think it's actually due to overwatering & limescale from my very hard water and humidifier ) Note : i'm really struggling with the heat of the tent. i don't know if the lamp heat too much, or the extractor doesn't extract as much as it should. the humidifier help lowering the temp, without it, it can go as high as 33-35° C ( 90-95°F )