Results of increasing GH/potassium

• pH:
• Temp:
• KH:
• GH:
• NH4:
• NO2:
• NO3:
• PO4:
• Iron:
• Dosing: 5 mL Flourish, 0.5 ppm iron chelate
• NO3:PO4 Cumulative Dosing Ratio:

Notes:
Last night, I added 2 extra tsp of Equilibrium, which brought the GH up from 6 to approx 7. I had done so because the Rotala indica/rotundifolia was stunted, and utilization of nitrates and phosphates seemed almost non-existent over the past several days.

This morning, there was a sudden burst of growth in the Rotala indica/rotundifolia with normal sized leaves. It seems that most of the stem plants also had a burst of growth. I was surprised to see a response so quickly. My guess is that the plants were looking for higher levels of Ca/Mg. It could have been due to the extra potassium (~10 extra ppm), but growth was slow even right after the first addition of Equilibrium during the water change, which added over 20 ppm potassium. With the increase in GH hardness, I also noticed an increase overnight in algae. It seems that algae also appreciates harder water. I also saw some of the "brown sludge" algae appear today.