This is my first time using the FloraNova series a...

Nutrients that have coloured dyes in them tend to stain the roots. Its no big deal generally the stain will wash off the roots anyways . How ever if its root problems they will just break , they will feel slimy the wont be as robust lots of signs to look for when your looking for root rot or the beginning signs of . A good way to assure yourself is that your leaves don't look burned or damaged in any way which leads me to believe that your roots are also fine because usually the damage you would see on the top of a plant would also be the damages in the root mass as well and based of the pictures i see in your diary your rocking and rolling ! I hope this information helps you to understand the dyes some companys use for their products and the signs or rotting roots . -Happy Growing!