Shrimp sighting

• pH: 6.5
• Temp:
• KH: 5
• GH:
• NH4:
• NO2:
• NO3:
• PO4:
• Iron:
• Dosing: 10 mL Flourish, 25 mL Excel
• NO3:PO4 Cumulative Dosing Ratio:

Notes:
Since I hadn't seen any shrimp for the last several weeks, I thought I had killed them off through my tank chemistry tinkering, but I was surprised to see two of them hiding out in the H. micranthemoides.

I don't know why the pH was so low today, but the fish don't seem to be gasping, so I let the CO2 bubble rate be (only 1.8-1.9 b/s).