I flushed my Wembley, now what to do next?

I have 4 photoperiods from Pyramid seeds one of which is their Wembley strain. For some reason this plant just seemed to stop growing and just "sat" there for at least 9 or 10 days. It's in a 5 gallon container and it didn't seem to be getting any lighter, like no water was being used. So tonight I flushed it with 10 gallons of RO water figuring I was in some kind of nute lock. The color of the plant isn't really that bad, a bit light but still pretty green. Now I wonder what my next step should be. Do I water right away with a mild nute solution or let it go for a few days? Thanks in advance

I should add that the other 3 Pyramid strains are doing well, Tut, Shark, and Osiris. I've had one Osiris before, it was very good with a good yield.

give it a couple days then wean back on would be my best guess.

What would I do? I would of posted a pic with a little more info!
The info don't have to contain your whole grow but just the basic
info like what dirt, hydro, type of grow medium, any added
amendments, lights, recent feedings/watering or flushing are
all very helpful in diagnosing problems!