1500 ppm from my current 1000 ppm

[Leslie]

Yo, Ron... This is an update about the two month old bud plant grown in a soil mixture. I transplanted it into a larger container, so the roots could grow some more, and now I'm about ready to cut back the light, and let her flower. The question is: Should I switch over to 1500 ppm from my current 1000 ppm all at once, or should I increase the nutes gradually? By the way, thanks for the note about 6.5pH for soil...This plant is really gobbling the nutes. I will take the clones hydro for sure.