Recommend a valve for dosing air?

Question

Do it yourself

Hello!
I want to make a so-called. water panel , but so that the air bubbles are dosed using signals from the computer. The idea seems to be not new, but I did not google anything.

As I understand it, air must first be pumped into the buffer tank, and from it it must be fed through dozens of tubes into the panel from the bottom in a row.
In front of the panel itself, you need to insert electronic valves into the tubes, preferably small, “rapid-fire”, silent and inexpensive.

Then it will be possible to add words and pictures from bubbles. First flat, and then voluminous.
If the bubbles rise too quickly, you can replace the water with more viscous liquids.

The main question is which valves to use? Maybe not a valve, but something else?

Answer 1

The fuel injector from the car should fit.