I'm in the UK mate, I use Samurai Shogun base nutes, and use Buddhas tree suppliments like boost and their 9/18 PK. I'm using Buddhas Tree Flower Burst at the moment, and since using it has made my pH fluctuate like crazy. I had to do an emergency flush last night which is why if you can see on the photos there is light burn, I hoisted the fucker up and some leaves touched the light, whilst I cleaned out the system. All this was done drunk lol
The pH had dropped to around 4, she's getting flushed at the mo with very little nutrients. She's looking stable now, staying around 5.8.
I'm going to keep feeding her with the Flower Burst but drop the amount of base nutes.