Well I don't want this grow to die so I need your help guys!!! *the plants are outdoors *they are 3 weeks old from seed *there's a nice weather everyday and these are some high quality amsterdam seeds planted in some nice soil mix with a bunch of perlite in it.. *They are being watered with tap water, possibly with a slight acidic ph (maybe around 7) which hang in an open container for at least 24 hours before watering. * I fed them only once, on the last watering with some "Bio-Bizz Grow" with a ratio of 3.0.8 on half of the recommended dose, and I am positive that this feeding didn't cause the yellowing. Everything was alright in the first 2 weeks but they have recently started to yellow, starting in the lower leafs and climbing up... I have topped the plants about a week ago and as you can see they have already developed two tops and are growing nicely right now except for all the dying leafs and the yellowing... Also, on a closer look, I was able to spot small insects on the leafs and some webs hanging between the leafs.. I'll let you check yourself.. On the first picture, you can see the pests/insects/I don't know what they are called on the leaf, there are two of them, they are white and you'll be able to spot them if you look closely at the upper part of the picture. Please let me know what you think as soon as possible, thank you!