I used something crazy called "orchid bloom" - it was like 33-100-100 prolly bad but I needed the P for flowering and prolly WAY too much K.

Anyway being a newbie I used it before reading, and it didn't do too bad.

I would say sure it won't harm it at all, but maybe start with half strength and build up a bit more each water so they get used to it a little.

Some people stop of the nutes for the last two weeks in flowering.

Hope you have great succsess - Light, Hall