Switching nutes

Hi all,

I'm currently about 3 weeks into flowering & I've been using Canna A&B. I've just about run out & will be buying more nutes pretty soon, but I am wondering if I was to switch the type of nutes would it effect the plants? & if not any recommendations for different nutes?

snow storm ultra, crystal burst, gravity all by humboldt countys own and cal mag + from botanicare.

Do you not like the CANNA?

[FONT=Tahoma, Calibri, Verdana, Geneva, sans-serif]Don't buy into all the hype. Canna is a good cheap nute you don't need all that junk[/FONT]

I don't dislike Canna. The thing is this is my first grow and Canna came in a package so I don't have anything else to measure it against, all I know if from this forum and people seem to swear by certain products. If it doesn't make any difference I'll happily stick with Canna!