Ista Mini CO2 Bubble Counter

I was pleasantly surprised by how clear the acrylic body is—it makes reading the bubble rate super easy even in a dimly lit tank. Setup was quick and it hasn't leaked a drop in the two weeks I've had it running.

Finally got a consistent bubble count with this mini counter—the acrylic body is crystal clear, making it super easy to read the bubbles even in my small tank. It attached securely to the CO2 line without any leaks.

Dialing in the bubble count on my nano tank is finally easy since I can actually see each bubble pass through the counter. The acrylic is small enough that it doesn't clutter the rim of a 5-gallon setup.