Here is an excellent and attractive addition to any freshwater tank. The Marimo ball, also known as Moss ball or Japanese moss ball is actually a filamentous green algae (Chlorophyta) found in a number of lakes in the northern hemisphere: Japan, United Kingdom, Russia, Iceland and Northern Europe.

Scientific name: Fissiden fontanus
Common names: Phoenix moss
Family: Fissidentaceae
Maximum size: Infinite
Light needed: Medium
Water conditions: 73.4-82.4°F (23 – 28 C), pH 6.0 – 7.5, water soft to hard
Hardiness: easy to moderate

Scientific name: Riccia sp “Dwarf”
Common names: Crystalwort or Riccia Dwarf
Family:Ricciaceae
Maximum size: about 0.03 by 0.3 inch.
Light needed: Medium to High
Water contidions: pH 6.2 to 7, temp. 23 to 28, soft to hard water
Hardiness: Easy

Scientific name: Echinodorus tenellus
Common names: Echinodorus Tenellus
Family: Alismataceae
Maximum size: Leafs are 2-3 inch long by 0.1 inch board (may be longer in poorly lit tanks )
Light needed: Medium to High
Water contidions: pH 5.5 to …

Scientific name: Riccia Fluitans
Common names: Crystalwort or Riccia
Family:Ricciaceae
Maximum size: about 0.04 by 0.5 inch.
Light needed: Medium to High
Water contidions: pH 5.5 to 7.5, temp. 20 to 30, soft to hard water
Hardiness: Easy