I don't know about aeroponics, but the rooting powder, gel, liquid, should have 'some' nutes in it to promote growth. I use a 5 dollar jiffy garden from wally world, and I spray mine with 1/4 strength nutes on the 4th or 5th day & again on the 9th or 10th day, and usually by then they're sprouting roots to transplant...
Without a root system and all leaves have been clipped precisely how are they supposed to take in the nutrients? So I don't give nutrients until I have roots showing. I have been told you could foliar feed clones but mine clone in under 14 days so no need really.