The Marimo Tree Small is a decorative tree structure adorned with real Marimo moss balls — the spherical freshwater algae from Japan's Lake Akan, valued for their perfectly round form and deep velvety green surface. The tree armature holds several Marimo spheres to create the appearance of a miniature tree in full leaf, combining a decorative structure with genuinely living aquatic specimens at a size suited to smaller aquariums.
Marimo are among the easiest and most long-lived aquarium specimens available. They grow extremely slowly in low light without any CO2 injection and require very little attention — a gentle squeeze and reshape once a month is all that is needed to maintain their round form. With proper care they can live for decades.
This is a ready-to-use product — simply rinse and place in the tank. The small size is suited to aquariums of 30 litres and above where it works as a neat midground feature. The Marimo spheres can be removed from the tree and placed freely in the tank if preferred, then reattached to the structure whenever desired.