Day 8 after sprout/First grow

Hello all! I first want to say that this site was my go to when studying how to grow these plants. I've read "7 Steps to Grow Cannabis" probably 20 times (a little excessive, I know) but it's a simple book to read with most of the answers I needed as a beginner.

My set up is:

White Widow, indoor, photoperiod

Seedling stage, day 8

Soil is Happy Frog mixed with ocean forest and some containers with just HF. All with about 20%perlite

2X4X6

MarsHydro sp3000 light/ 19" at 30 percent dim

Temp averages 77 w/ high of 80 and low of 71

Humidity averages at 66-68

Have not been able to register a PH of medium or runoff yet but watering w/ PH adjusted R/O water at 6.5.

I spray watered for the first few days but switched to soaking medium and now waiting for it to dry

I've seen a thrip here or there but havn't for a few days

Here is a pic of the seedling I have a question about:

My question is: Is this normal? This medium does have more ocean forest than the others but still most Happy frog so is it the soil?

Thank you for any and all help 😉