Nutrient questions.

I want to try with some Autos, but have no experience ever growing them.
My 1st question is- Worth it to buy CANNA (Aqua), or keep it simple and save money? Any reccomendation on nute company to use?
2nd question- Does my "feeding schedule" need to be revised, or just go with normal schedule/amounts? If changed, please briefly explain how.
*As a side note, I grow 100% hydroponically in Dutch Bucket systems w/ 16 gallon reservoirs recirculating. Room is 10'x8' with temps between 72-78 and humidity approx. always 55%ish. If any other info is needed, please ask....and thank you in advance!

I wasnt able to find a nutrient system that didnt work well in my hydro. Canna is a quality product.
follow directions on the package, go light instead of heavy if you need to change.