Having some issues with Hydro setup (AeroGarden)

I am using a drip system (aerogarden) to grow some seedlings that i germinated in soil... Do i need to be turning the pump off in cycles or running it 24/7? after leaving the pump off accidentally over night they suddenly grew a few new roots for the first time since being in the aerogarden... but until now none have grown new roots and now they have all grown new roots at once... also, i am using the Recipe for Success starter kit nutrients from Technaflora (makers of B.C Grow, B.C Bloom, etc) and have applied the recommended nutrients for the veg stage, but then quickly flushed that out and decided to just stick to the nutes recommended for the transplant stage, as instructed by the sheet in the kit, because i have removed them from soil and into water, thus that's a transplant. two of the sprouts are curling their leaves under like an m shape (first set of leaves after seed-leaves) but another is turning yellow...i have been using Root66 rooting mixture as part of the regimen recommended by the kit... as well as the SugarDaddy and ThriveAlive-B1 Green...

I used 2 tsps of Root66, 2 tsps SugarDaddy, 1 Tsp ThriveAlive-B1 Green.. or actually a little bit less of each than that...

Update: i wrote that a while back, now i have a few more sprouts and they are looking very healthy and green but the leaves are curling under slightly, that's a sign of too much N right? but others are pale or yellowish and others are perfect and perked up... a little more root growth and they appear healthy and stark white, the new ones, the older roots are browish looking, and kinda weak, but not mushy or anything, so may or may not be rootrot...

i would appreciate any advice anyone has regarding these issues... Thank you.

It sounds like you need to start checking the ph of the water before and after you add nutes. Make sure the ph is always optimal for new growth to appear.