My best results came when I did top feed using Hydro Halo Drip rings. with air pots. My media was lava rock. I fed ~ 3 x per hour (see photo). There were issues that are easily corrected, but I moved to F & D always with VG results, until I outsmarted myself pushing the envelop by raising the water line, not realizing I was soaking the starter cubes= root rot
I finally resolved a root rot issue that killed my last 4 grows and almost my current one until I figured out what the problem was, a combination of setting my water level too high (soaking my starter cubes) combined with too frequent floods which never allowed the media to dry out. Obviously, this is not a problem with clones that are not put into any moisture holding media
I use polished stones which do not hold moisture. Consequently, I am able to flood every 30-45 minutes 24/7 30 minutes in grow, 45 minutes in bloom with excellent results
The root pic is not RR, I poured a dark root enhancemnet nutrient directly into the net pot. The roots are the from the blooming plant, the picture is ~ 2 weeks ago
hth
Drop by my thread to see the near death and resurrection