In order to know what pH to set you controller to, we'll need to know the KH
of your tank water. As a general rule the pH should be set 1 less than your normal non CO2
injected pH. This can be tweaked as needed based on fish reactions and plant health.
The bubbles per minute will be unique to your particular setup. A slower count will take longer for the appropriate CO2
levels to be acheived, but will be less dangerous if something goes wrong with the selonoid.
The main tests that you might want for a Planted Tank are:
The following tests are good to have as well.
RedSea is the recommended brand for the PO4
testkit. Apparently it is almost as accurate as the LaMotte kits, but costs significantly less.
You current temp looks fine to me.