Hmmm...Could I be over doing the fertilizing? Basically, I have a two liter bottle of water with 15.30.15 mixed in and I water her with that about once every three days or when ever she dries out. I DID notice there is a bit of burning on the very tips of some of the leaves. Should I start watering with regular water and alternate?
What PPM levels have you been feeding at?
Just my 2 cents- If you noticed the plant slowed down all of a sudden you might be experiencing some lockout from too many nutes in your medium. Your plant may be telling you this with the slowing in growth and the light burns you are seeing. The burns are likely either from too high ppms or an out of whack pH.
To counter this you can flush the plant next time you are supposed to water with plain pH’d water and collect your runoff early as it runs out of the pot. Test your PPM AND PH of the runoff as this is valuable info that can help you at least partially understand what is going on in your medium.
If PPM comes back super high from your runoff and your pH is out of your 6.3-6.8 range then you are likely experiencing some form lockout (which might be precisely why she slowed down her growth)
For example- let’s say your ppms come back ridiculously high at 1400 or above (I just had a black jack auto that I overfed and neglected big time and the runoff was at 2200!!). You want to flush it with plain Ph’d water til your ppm gets to an acceptable range. Then let your medium dry. She should start absorbing nutes again.
Same for pH. If you test the runoff and it’s a 7 or above, run some 6.2 or 6.3 water through to offset it a bit. That helped immensely with my most recent run of candy cream autos from Seedsman. She had a high pH and yellowed up almost immediately overnight. I tested her runoff and it was 7.2. I saturated the medium with 6.2 pH water and got my runoff down to 6.6 and within a week I had a much healthier looking plant.
some people say there’s no value testing runoff, but I think it’s one piece of the puzzle, and the more pieces you have, the more informed decision you can make regarding what to do with your plants.
the pic I attached is of my candy cream after rebounding from its yellowing episode. As you can see, she still has some yellowing going on (most of it is senescence because she’s so late in flower now), but this plant was highlighter yellow. And after I flushed her and resumed feeding she bounced right back.