I'm not expert, but I'm sure I have read on this forum people have done this. You have to be very careful with the roots when cleaning it if it has rooted already, if not then it should be easier. I'd either stick it straight in the hydroton or in a small rockwool cube which you can then put in the hydroton. Like I said, I'm no expert, but this is from what I have read. Others will give their input I'm sure. All the best with the grow.