I’ve used both before and mixed a few times. I mix some mycos in when filling the pots. Like them both bc they aren’t too hot for the seeds coming up.
I’ve been just using ro water and fish shit until they have 3-4 nodes. Then they get the juice!!!
I do the same minus the happy frog and I’m usually around week 5 or 6 which I love cause it’s getting into flower time and nitrogen is low so it’s easy to adjust.