Hi its my first time growing indoors. Im using coco and everything was doing alright besides a little slow growth. I have 4 clones and 4 seedlings. They all have some burnt tips here and there but most of the problem is coming from the seedlings, one has a leaf tip curled down. 2 have reddish spots on their leaves and i can see it progressing. I have one of those begginners nute kits from greenplanet. Any tips would be greatly appreciated.