Pawfly LED Air Stone Disc

Bubbles and light come from one fixture: a 2 inch disc with LEDs that shift slowly through six colors while a stream of fine bubbles rises above it. The lights run on a low 12 V DC supply. Three suction cups hold the disc down, a fourth sucker tidies the power cord, and 60 inches of standard air tubing come in the box.

You still need an air pump, which is not included, plus a power socket near the tank for the light. Plan the cord route before you fill the tank, then fix it with the spare sucker so it does not trail across the glass. We give no flow figure for this disc, so start with a small pump and adjust from there.