Florakleen is good. You are going on vacation. I assume you are growing hydro style since you are in this forum. The most I have left my hydro was 2 days and things were a little out of whack when I got back. I flush every two weeks with a commercial flush (clearex) for maybe an hour or two on a recirculating system. That plant could definitely use a good flush right now(not flushing for a week). If you have and ec/ppm meter and take a reading of the flush solution before applying and a reading after you will see the amount of locked up nutrients in the grow medium. Keep taking pictures and guaranteed someone will let you know when picking time is near.