I had my water tested in a lab and sent the results to the Blackmore co. Dr. Bill Argo emailed back and he suggested the MSU 15-4-17 South Florida Special formula based on my lab results.
The Magnesium was low.
He said alternatively I could use the MSU Well Water formula but that I would need to add Epsom salts every 2 to 4 weeks.
So I feel pretty confident that the water/fertilizer matches up well.
I've been using chicken grit mixed in with some of my paphs and phrags and some bulbos. I'm not sure about how much they are buffering, the crushed shell is so hard...
What form of lime do you use?
Where do you get it?
I was also thinking of using the crushed limestone they use for aquariums, the
pellets are pretty uniform in size.
Thanks again,
Jim