Newbie here saying hello

[newhydro16]

Also, Should there be a lot of bubbles from air pump under each plant, or does a few suffice?
Have Eco Air2 pump (126) minute, and three small air stones. About half the plants seem to be getting more bubbles then the others. I started with two stones and it seemed like there were more bubbles all around. Should I go back to just two?
Thank you, much appreciated.