I don't see any reason to give the rooting hormone when the plants are this far along. I thought that was for rooting clones? Doesn't look like it's hurting any, just questioning why you would need it.

One thing I don't like is the warm water. You say you heard they like warm water? Well, you heard wrong. Roots like to remain cool, in soil and in hydro. Also, warm water is higher in tds than cold water, and is more expensive. There is no reason whatsoever to use warm tap water.

I use cold water straight from the tap, nutes added and PH'd; no leaving it overnight, no waiting for chlorine/flouride to evaporate (lol), never had any problems. I should mention that I have also tried reverse osmosis water exclusively for a whole grow and DID NOT notice any difference in yield or plant health, it just cost more. So, I switched back.