Refill for Tropica Co2 system 60. Contains three cylinders with an content of 5000 milliliters Co2.
The Alternanthera reineckii 'Mini' is an nice red plant that can grow up to +- 35 - 40 centimeters.
Azolla filiculoides (previously called Azolla caroliniana) from North America is a small (1-2 cm tall), floating fern. A decorative plant for open aquariums.