Hey Etreme!
She's looking a bit sad
Seems like you have very light yellow leaves (which sometimes suggests underfed) and crispy tip burn (which often means over fed)
How old is she?
I would take a educated guess that the PH of your medium (soil? coco?) is out of range for nute uptake. At some point it was in range but too strong.
If this is the case, you'll need to get a reading of the Soil (or coco) PH - there's a few different ways of doing this, but here's an easy one i use for a pretty good idea .
PH Calculation Guide by GoAuto6
Rough Calculation Guide:
Here's some good info on ph.....
If your runoff pH is higher than your starting pH, use this equation to determine your soil pH:*
Soil pH = Runoff pH + Difference
If your runoff pH is lower than your starting pH, us this equation:
Soil pH = Runoff pH - Difference.
For example, say your the starting pH of your solution before it goes in is 6.5 and the pH of your runoff is 7.0. The difference is +0.5, so using the above equation:
Soil pH = 7.0 + 0.5*
Soil pH = 7.5
If your starting pH is 6.5 and your runoff is 6.0, your difference is -0.5 and using the above equation:
Soil pH = 6.0 - 0.5
Soil pH = 5.5
If you can get a reading of the medium - we can try and correct it for you.
You'll need a digital PH pen for this (and for most successful indoor growing) - Without one it's all just a guess. (which would be a bit random)
If you put loads of tap water through - then the chances are that your soil PH will be close to your tap water PH. (and if that's in the UK it's likely to be between 7-8 so you'll need to lower it somewhat before theplant can eat the food... 6.2-6.5 in soil. (Shoot for 5.8 in coco.))
Hope some of this helps
All the best
Blue ^_^