Moss Ball – Cladophora aegagropila

Moss Ball or Marimo Balls were first discovered by Dr. Anton E. Sauter in lake Zeller Austria in the 1820s.
The plant was named Marimo by a Japanese botanist Tatsuhiko Kawakami which means Mari bouncy ball and Mo is a term for plant that grow in water. In Japan the Marimo Balls has been protected species since the 1920s and is said to be a national treasure.

The Marimo Moss Ball is an algae that grows into a large spongy green ball. In the wild Marimo balls get there shape by water current that moves then around in the bottom of the lake giving them there round ball shape. Marimo have a growth rate of about 5mm per year and can grow to about 20-30 cm (8-12 inches).

In the aquarium Moss ball make great foreground plants and are very easy to care for.  They required low to mid lighting and adding C02 is not needed.  Remember in the wild they move around so make sure if they don’t move in the aquarium to flip them around once in a while so they can keep there round shape and also so bottom part don’t turn grey and gets light also.

Propagate Moss Ball can be done in two ways 1. Get a nice size ball and cut it up into pieces roll them up into small balls and should be able to get from 4-6 small Marimo balls.2 From time to time your lake ball will slowly start growing lumps just tear it off  and you will have a baby Marimo. It will leave a hole in the plant but don’t worry it will grow back.


Moss Ball

  • Scientific Name: Cladophora aegagropila
  • Family: Cladophoraceae
  • Range: Japan, Northern Europe, Farm Raised
  • Maximum Size: about 8-12 inches.
  • Lighting: Moderate to High.
  • Aquarium Size: Moderate tank 10 gallon or lager.
  • Temperature: 72-82 F
  • PH: 6.8-7.5
  • Placement: Great foreground
  • Water Movement: Low
  • Care Level: Easy.
  • Supplements: CO2 Fertilization.
  • Water Hardness: 2 – 12 °dKH
  • Common Name: Moss Ball, Marimo Moss Ball, Cladophora ball,  Lake ball, Tribbles, Algae Balls, Marimo Ball
  • Plant Structure: Ball




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