First Ever Grow

January 3rd: Flushed both plants with 3.5 gal of water with 10ml Florakleen RUNOFF: 1000ppm, 5.9pH January 5th: Watered both with .75gal, just RO water pH'd to 6.4. Realizing last week with my 4000+ ppm that I was feeding to much, i thought that every time i watered my plants I was to use my nutrients, well come to find out you need periods of just plane water in between feeds that keep soil pH and ppm ideal. Ill be doing an aggressive feed next to supplement the lost nutrients from the flush's. Please leave a comment and let me know if this is wrong, this is my first grow.