You check your GH, KH, and PH?
Checked everything today and the two tanks, the problem tank with the orange and a small 2.5 with pfr in them.
All parameters were the same! The 2.5 with the root tabs in there is at 1.5-2 for phosphate while the problem tank was at 1. Other than that, everything was the same.
If anyone sees me looking for shrimp other than pfr, don't sell it to me. LOL