@Wawashell @Cotton46 Yes mate I grew in GH waterfarms for years and used GH FloraNova Bloom ( I used Bloom 4-8-7 entire grow -- never bothered with the Grow 7-4-10 -- and had no problems ) supplementing with some CALiMAGic as needed ( perhaps only necessary if you grow with LEDs or COBs -- I always have ) and Liquid Kool Bloom 0-10-10 when flowering begins !!
I have since switched to organic soil but had great success and no complaints with GH nutes in GH waterfarms