tips?

i'm not fishing for an answer (said it before, but i don't mean it this time... err... ahh) looks good. The best advice i can say is to take it easy. any anxiety to do "more" or "something", just hold it back... suck it up... if you not the OCD type, well that's harder for me to relate lol. Stick to what you've likely read about watering your medium. let it dry a bit, learn weight of your pots dry and saturated... easy on nutes until you see a hint of slowdown of growth or any fade -- generally the cotyledons (First set) will show problems before others, and they can be sacrificed no problem, whatsoever -- not early of course.. this will be 2 weeks or likely more form now and they'll be shaded by then. if somethign does arise after that point, don't immediately think you need to add something.. get a leaf chart... eliminate possiblities with recent behaviour... easier to recover from a slight deficiency while you figure it out than cause a toxicity plus your original problem or worse.

They are looking good, to help increase humidity if your area has low rH is to place a clear plastic solo cup over the top of them, mist the inside of the cup. Don't over water! About a shot glass or two right at the stem is all they need right now.. Force the taproot to go down instead of traveling out.. this will give the best and strongest root system for your transplant in the future! Hope this helps, it's looking good so far!! Cheers and Happy Growing!