It is well past time for you to transplant to new medium, and on top of that, you've got severe acidity buildup starting to occur. When pH 9 water runs off at pH 5.75 or lower, you can bet your soil is running 4-5 if not lower.

Transplant and flush hardcore.
khyberkitsune Reviewed by khyberkitsune on . Ph runoff Issues So last Thursday I flushed my plants for the first time and found alarming results. Some of the plants runoff was ~ 6.2 when the intitial solution was ~6.65 these plants are not a big deal I will just water them with a 7 ph solution.:) The problem is that I have a couple of plants with a runoff of ~ 5.75 when the solution being put in was around 9 ph. So now the question is do i flush the plants untill the runoff is at a good level or do i continue to use a 9 ph solution in watering to try and Rating: 5