I got several seedlings from my brother the other day that looked pretty weak and spindly but after being transplanted I have the majority of them looking stronger. This weekend I hope to put them in their permanent containers and want to ensure the vitality without getting too aggressive as I fertilize them. The varieties are beets, collards, cabbage, broccoli and radishes. When they were given to me most had weak stems and miniscule roots. My choices of fertilizers include Alaska brand fish fertilizer (5-1-1), Super Bloom (11-55-11) and general tomato and vegetable fertilizer (3-5-6). I am leaning toward the higher nitrogen fish emulsion or tomato feed, but a voice in my head says "build a good root system first!" These seedlings are about 2-4" high and the super bloom may kill them... What should I use?? Thanks in advance for all of your help!