OG Kush from Seed

Week was pretty good up until day 5 of the week when iy noticed some yellowing on leaf tips and slight curling. within a few days yellow/brown spotting. Could be too much nitrogen, possible with all the top dressing last week, or could be calcium deficiency. Top dressed with the Basalt Rock Dust day 6 of the week because I realised I forgot to while mending soil last week. Going to stop by my local shop on way home tomorrow and get their opinion. They have much experience and give out free help, no purchase necessary 👍.