Fertilizer for seedlings

This morning I mixed 1 tsp of fish emulsion fertilizer with a quart of warm water. The seedlings soil was getting dry, and I thought it was okay to give them a shot of weakened fertilizer (5-1-1). I fed all of the marigolds, and a couple of the Black Eyed Susans. The marigolds are about 1.5"; the BES are less than .25" and a few of the snapdragons have emerged. As of today, 30 marigolds are up, with nothing in 6 of the cells yet.