Java Moss
Taxiphyllum barbieri
Edited by Ivan F. · Reviewed
Beginner verdict
A soft, tangled moss that grows almost anywhere and gives baby fish and shrimp somewhere to hide. It needs no special light or substrate, and it grips wood and stone by itself. It is one of the best beginner plants, as long as you trim it now and then.
- Light
- Low
- CO2
- Not Needed
- Growth
- Moderate
- Placement
- Attached to Hardscape
- Max height
- 4 in (10 cm)
- Temperature
- 68–86 °F (20–30 °C)
- pH
- 5–8
- Needs substrate
- No
Java Moss care mistakes to avoid
- Trim it regularly, because dense clumps trap dirt and can turn brown underneath.
- Rinse clumps during water changes to remove trapped waste.
- Keep it clear of filter intakes, because fragments clog them.
- Avoid strong light, which encourages algae to grow in the moss.
How it spreads
Pull or cut off a piece and attach it elsewhere. Every fragment can grow into a new patch.
Java Moss FAQ
How tall does Java Moss grow?
Tropica lists growth to about 10 cm (4 in) in a tank, and it can grow larger over time.
What light does Java Moss need?
Tropica rates its light demand as low. Most standard aquarium lights are enough.
How do I attach java moss?
Tie it to wood or stone with thread, or use a little aquarium-safe glue. It will grip the surface over a few weeks.
Is java moss good for shrimp?
Very. Shrimp graze the biofilm on it, and babies shelter in it, which greatly improves survival.
Where to buy Java Moss
Stores that list it under the same scientific name as this page. We earn nothing from these links. We have not bought from them, so check each store's own terms.
Live animals and plants travel by courier. Check the store's live-arrival guarantee, and only buy once your tank has cycled (see how to cycle a fish tank).
Some US states restrict certain species. Check our US state aquarium rules table and your state's own rules before you buy.