Little bit advise needed

Hi guys, been lurking about on here for a few month now and thought it's about time I got involved.
Done a few grows in coco with autopots and had some good results and some not so good. Decided its time to expand my grows so build a grow room that I'm going to use oxypot in. Had a few plants already started in coco that iv put into flower that are doing fine but I decided to try and "wash the coco" off one of the plants and stick it in the oxypot whilst I was waiting on new seeds arriving. At first it didn't do to well but now it's starting to pick up a bit. All the old roots died and I was about to give up but after about a week from seeing the new root growth she looks like this...



The problem is that she is starting to show a lot of pistles and has been under either 24/0 or 18/6(last 5 days). She is a feminised seed and not an automatic. the room is sitting at around 26/27oC lights on and around 20/21 lights off. Why would she be starting to flower and do you think she is looking healthy enough?

Thanks
K

Forgot to say I'm running canna aqua at 380ppm under 600w mh

Not seein any pistils in your pics, she most likely has simply matured to the point of ready to flower

Not the best pics as are taken on my phone but u can see them better here.

It's common to see pistols in female plants that get vegged a decent amount of time. Some strains do it earlier than others and clones seem to get there the fastest.

Kinda funny it looks like it is praying for magnesium.

This is my first grow in dwc culture so any advice will be greatly appreciated.