First timer. Any advice appreciated!

What strain is it? Girl Scout Cookies Xtreme fem

Is it in Veg or Flower stage? VEG (seedling)

If in Veg, for how long? Seedling about 7 days since first sprout

If in Flower stage, For how long?

Indoor or outdoor? indoor grow tent with carbon filter with duct fan, a floor fan and a fan hanging at the canter of tent.

Soil, Soilless or Hydro? COCO

If soil/soilless, what is in your mix? If soil/soilless, what size pot? using CANNA professional plus coco coir with about a 70/30 mix with perlite with a buffering of 5ml per gallon of CALMAG. currently in solo cups.

Size of grow space (LxWxH)? 3x3x6

Make and model of grow light? Spider Farmer LED SF 2000 (struggling best height/ dim setting for seedlings)

Temperature in the environment? 73 - 79 F

Humidity in the environment? 67-75 RH. Was a problem letting fluctuate from 60 -90 before installing carbon filter with good duct fan. now RH is easier to keep consistent.

PH of medium or reservoir? Dont have a good medium PH tester yet but run off PH is around 6.2

PPM of medium or reservoir? EC runoff has been between 300-400 since fertilizing following the COCO for Cannabis web site advice

Any Pests? no

How often are you watering? Twice a day with feeding

Type and strength of nutrients used? Fox Farm big bloom, Fox farm grow big, CalMag.

Last feeding strength: 2ml CalMag, 1tsp big bloom, .5tsp Growbig per gallon of water which we then diluted until the EC was between 383-402 with a PH of 6.1-6.3

Im sure there are plenty of things we could be doing better. We still feel un-easy about basic things like fertilizing, correct lighting, and proper air flow. But we are having fun learning as we go. But we did notice some sign of deficiencies and are looking for some advice. We noticed the true leaves of our bigger seedling were getting wavy and getting slightly lighter in color. one of the leaves has a tiny browning/bleaching spot. ive read that this could be calcium deficiency, and have been bottle spraying the seedling leaves with CALMAG water(800 EC) twice a day since noticing the wavy leaves as is suggested on the cocoforcannabis.com page. I have noticed signs of our smaller seedling getting a little wavy as well but not nearly as bad. I could ask a million Q's but want to take it a step at a time! Extremely grateful!!