Your medium choices are creative :thumbsup: , but their gonna give you probs in the long run. Do you not live near a wal-mart? they should have Peat Pellets. Or you could use straight Perlite (they have grains in a bigger variety if you can find them)

Those strips only test for the range theyre listed for. If youre that concerned, get the pool test dropper kit, otherwise get a ph pen.

GH's Micro and Bloom (Lucas Formula) works every time for me.