Monitoring recent changes

Numbers

Date	GH	KH	pH	NO2	NO3	NH3/NH4	Temp °C
6-May	180	120	7.0	0	20	0.5	23°

Observations

Based on yesterday's analysis and changes:

1. Addition of the 50-watt tank heater was effective in keeping a consistent temperature.
2. I accidentally left the pump on all night instead of using the timer.
3. More growth was noticed among the plants with the exception of the chive. Since the cool air and water temperatures the other night, it appears that they haven't fully recovered yet. They may not ever recover, but we'll see. When I sniff closely to the grow bed, around 3-6 inches away, I can smell the vegetation and it smells great!
4. There seems to be a very light foam around the edges of the tank where the water surface meets the tank and around the intake hose. I'm a little concerned that I could have introduced a source of contamination. I'm hoping it's just due to the addition of the pH UP product. It could also be from bullet point #2. Update: Since storing the pump to a schedule, the foam has vanished.
5. There was a large spike in Carbonate Hardness (KH). This is most likely due to the minerals in the pH UP product.
6. The pH has been raised to 7.0.
7. Ammonia, nitrates and nitrites remain unchanged.

Thoughts

I'm going to introduce another round of the pH UP to the water (2 drops per gallon). Since the common effectiveness range for the desirable bacteria is around 7.3 pH, I want to achieve this level in keeping with my goal in kick-starting the cycling process.

I will not do anything else to the tank. I'll continue with another reading tomorrow and act accordingly. I will most likely just let it ride over the weekend unless something comes up that needs immediate attention.

Photos

I believe this is the thyme	The weakened chive
Cilantro and basil	Pepper?