Replacing CO2 tank

• pH:
• Temp:
• KH:
• GH:
• NH4:
• NO2:
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• PO4:
• Iron:
• Dosing:
• NO3:PO4 Cumulative Dosing Ratio:

Notes:
While I went out to get the CO2 tank refilled, I shut off the lights, because otherwise I usually get a burst of algae growth without the CO2. When I came back a couple hours later, I was surprised to see a sudden increase in green water in just the couple of hours. Some of the plants, especially the stargrass, seemed to be stretching upwards, as if seeking the light. It never ceases to surprise me to see how fast the plants and algae will react to changes in environment. I got the 10 pound tank refilled for about $11.50.