I move my clones into a sort of pre-veg bubbler.

I use GH 3-part at 1/4 suggested strength, So for 2.5 gallons water:

3/8 tsp Micro
3/4 tsp Grow
3/8 tsp bloom
1/2 tsp calmag+
Ph to 5.8

I don't have a clue if that's optimal....but at least I haven't been to any funerals lately.

Hope that helps,
HMR