Ph is about 6.4 Ada and ro water will give you that ph
I saw the substrate you're using it should be fine...
Try to get your water to like 150-200 tds for tigers I keep mine 135 low because I have crystals.
But the tigers are doing fine in it you can see a berried female in the last pic on the left.
I think I might get my tds up to 150 since I read it was better for color and babies etc
Main tank kind of messy from rearranging stuff. I put a few pieces of wood with moss in the quarantine tanks and tied a bunch of new pieces of drift wood, I just tossed them in without arranging them.