Newbie needs help

Hi everyone, I am on day 14 of my first grow with seed #1 and day 10 with seed #2. I’m growing purple haze.
Setup:
Light: 18/6. currently using cfl for my seedlings, will switch to two 450 leds
Seed: purple haze
Soil: currently ff happy frog. Will switch to ffof when I transplant
Grow tent: approx 3x3x6
I have both an intake and exhaust fan going with a circulating fan inside the tent. I also have a humidifier in the tent.
Temps: approx 73 degrees and about 5 degrees colder for their nighttime.
Humidity averages around 68%
Ph 5.5

Some questions:
1. Do my plants look small? If so what can I do?
2. When should I switch to my leds?
3. When should I give them nutes? I will be using botanicare grow and bloom.
4. When should I transplant to my 5 gal?

I just watered the girls today after 3 days of no water.
I’m also using inkbird to monitor and control my temps and humidity.

Soil needs 6.5-6.8 ph. Don't start nutes! Happy frog should last until transplant! Good luck.

Up pot them .....
Bury stem in medium.
Add more light .... A lot more.
Happy Frog WILL carry seedlings for a few weeks on its own.

Plants are looking good..just stretching a bit..they need more light, but overall health looks good. Ph should be just a bit higher..near 6 ..otherwise, just add more light!