Tropica CO2 System BIO

I was skeptical, but the built-in yeast reactor actually produces a steady stream of bubbles that my crypts are clearly responding to after just two weeks.

My Amazon sword went from barely surviving to sprouting new leaves every week. The simple drop-in setup was ready to use right out of the box.

My anubias and java fern were looking stagnant for months until I set this up, and within two weeks the new leaves came in noticeably greener and larger. The setup itself is about as simple as it gets, no regulator or pressurized tank to mess with.