1st indoor cookies and bakery grow

friendlyfarmer420 So I have started my first grow lads wish me luck. I have 2 fastbuds gsc in there and 1 blueberry shortcake auto and 1 creme brulee auto which I picked up from the bakery seed co. Seeds germinated and planted on 9/11/18 and today is 13/11/18. I have a tube heater in the tent which is in my shed in the garden and when the light is off it drops to 14 degrees so I have gone for a straight 24 as it's winter. Can't be too bad I'm guessing. It's a Coco and perlite mix and I plan on feeding using advanced nutrients Coco series soon.

friendlyfarmer420 This week they are 11. Days old in the pic. I have not seen a massive growth but have added some empty bottles to fill in as humidity domes and have watered yesterday with half a litre but they are already dry? And they look small I dunno? The one on the top left has not grown in length at all. It's still about 1cm high. I'm also seeing yellow tips on the top right plant.