About a month ago I was going to use Black Gold seedling starter soil to plant my Gold Leaf seedlings in. Prior to planting, I watered it with tap water pH’d to 6.5pH and got a run off of 5pH. I ran a bunch of water through it and couldn’t get the pH to move. So I abandoned it and planted it in miracle gro hot slow release soil, despite knowing that I’d be in for a bit of nute burn while they established themselves. Long story short, the GLs did fine, got a little nute burn, but are now comfortably in 5 gallon pots with roots organics coco soil.
Anyway, I digress. Fast forward to today, and I have a rooted clone I want to get established. I read that Black Gold seedling starter mix is soilless. Thinking that last time perhaps I had been mistaken with the pH, I gave it another go, watering with tap water pH’d to 5.8 and got a runoff of 4.2, I ran a significant amount of water through it (7.8ph) and it baserly got to 4.8. So again, I abandoned ship and went with my root organics (5.8 in, 5.8 out, on the spot).
Anyway, is this just a bad bag of soil? Has anyone else had issues with BG seedling starter soil having a wicked low pH? Or is this just normal and I was being paranoid?