I have mounted and wired all sixty RGB LED’s under the tube support shelf. These RGB LED’s are in serial strings of 20 each, and I was able to connect them end-to-end, making the wiring much easier than the air pump motors! Each liquid filled tube in the bubble display will sit above one of the LED’s.
These LED’s are individually addressable by the Arduino that controls the entire system. In the video below I have them simply doing a simple color progression for testing.