Foxtailing ?

Yeah, as organoman said, probably not ideal to use that much light time. Too much light, heat often causes foxtailing. Luckily for you, that doesn't seem so bad. IMO, DO NOT go to a dark cycle or whatever, like just kinda gradually lower the light time, like an hour or two a day. Like maybe 1 hour first day (cause you don't want to shock the plant too much by massively changing conditions), 1.5 next day, 2 after that, etc till you're in a bit of a safer range.

You really are not doing your plants any favours by growing them at 23/1, cannabis needs sleep and 18/6 is optimum for cannabis growth and health. Try reducing the lights to 12/12 to get your blue dream to finish up, however I doubt she has the health to go another 3 weeks. She will not bulk up any further than she is now, it is just a matter of waiting until the trichomes are matured to the level you prefer. If it were my plant, I would harvest now, before health declined further. Honestly, you will get much better and happier plants by growing at 18/6 and this schedule will not reduce yield or potency, in fact both these things would be better due to having a healthier plant with a proper "sleep" cycle. Cannabis can only grow so much in any 24 hour period, and this growth tops out at about 18 hours, meaning running your lights longer than 18 hours is basically a waste of electricity. Be kind to your plants and give them the proper sleep cycle they need to function properly and they will reward you with kind, healthy and happy buds! If your next grow at 18/6 does not produce superior flowers, I will pay your bills for your grow cycle and send you half of my next harvest!! Hope this helps,............ Organoman.