Nutrient problem?

[Shutterbug1]

Hello all. I have 4 white widow autos in soil in 2gal pots. They have good drainage. The soil is Natures Own supersoil mixed with an organic soil. I used this all the same on my last grow and didnt have to feed extra or ph the water. This time it looks like they are very tall and when they started budding the buds are very thin and verg slow developing. Now i have these brown spots that start out kinda yellowish then turn brown. More and more leaves are involved. I suspect a calcium deficiency but i need advice to make sure. The tops are so tall now that they are getting heat stress on the tops cause i cant raise my lights any higher. Any ideas?

 

[alltatup]

Hi bug, bend the colas away from the light if you can. If you haven't flushed your plants, give em a good flush: https://www.growweedeasy.com/flushing-sick-cannabis

Finally, READ all of GWE; I learned everything over there. basics