Seedling + Nute Question

My seeds have just sprouted and are showing their first sets of serrated leaves. FF's feeding schedule includes a column for seedlings and cuttings, which I'm assuming is the stage I'm in right now, correct? I've heard stories of nute burning young plants which is what I want to avoid. I'm using FFOF if that makes a difference.

I've got Big Bloom already, so if I needed only 1 other fert, what would you recommend? I heard that Grow Big is really only needed if you plan to veg for 4 weeks or longer so I was leaning toward just grabbing the Tiger Bloom unless this is misinformation.

Pics are in my journal if you want to take a peek. Thanks for the help.

Don't give them anything except water, for at least 2 weeks. Seriously, I use FF OF and don't really feed them at all, til about week 5, a week into 12/12. All they get til then, is some Calmag. I start that around week 3, but use nother other ferts, while vegging. Ot's unnecessary, and I advise against it, especially with young plants.

I'm assuming that if the soil can sustain the plants up to flowering then I can skip the Grow Big and pick up the Tiger Bloom instead?

Also, I have one seedling that has been out for a few days but still no sign of its first set of serrated leaves. The other plants had those within a day or two of pushing through the soil. Is this plant a dud or am I being way too impatient?

^A long as you transplant when they are ready for it, the soil will sustain them for quite awhile. And yes, you can skip the "Grow Big" entirely, if you go big enough with the pot size, and don't veg for an extended period of time. Go with 5 gallon pots, and you'll easily be able to go 5 weeks, without feeding. If using smaller/bigger pots, adjust accordingly. A good rule of thumb that I use, it to transplant or feed, when the foliage gets to be about the same size as the pot, in both width and heigth. Push it much beyond that, and they start getting hungry.

I include foliar feeding too, which guarantees they won't go deficient. It really helps keep them happy, IMO.