Marimo Moss Ball 4-5cm


    Same day despatch when ordered before 2pm
    Usually arrives in 2-3 working days
    Orders over £50 sent by next working day courier

Sale price£1.50


Marimo Moss Ball 4-5cm

The plant looks just like a ball and from the outside anyone would believe it to be moss -but it's actually a spherical alga native to Japan and Northern Europe. Moss balls provide beautiful colour to the aquascape and will help keep nitrates down. They are a firm favourite of shrimps, who will often be found grazing on top and underneath a moss ball.

Moss balls are suitable for any tank - their slow growth-rate of 0.5cm per year makes them ideal for small nano and shrimp tanks. Given the right time and conditions, the maximum they will grow to in an aquarium is around the size of a tennis ball.

These moss balls are supplied at a small to medium size, around 2-3" diameter.  

Caring for your plant
Moss balls require a moderate light source. Ensure moss balls are not kept in direct sunlight or excessive light, otherwise the plant may turn brown and die. Rotate the ball occasionally to ensure even amounts of light. Best kept at temperatures of 22-25 degrees celsius. Freshwater only. Not for use in salt or brackish water.  

Cleaning your moss balls
The best way to keep the moss ball clean is to remove from the tank and gently squeeze into a bucket of aquarium water. Squeezing it pushes the murky water out and releasing it draws the cleaner aquarium water back in. If it floats after being put back in the tank it is because it hasn't absorbed water fully yet - it will sink again once it does.

Zebra Mussels in Moss Balls - IMPORTANT PLEASE READ
To address the recent concerns in the media, Zebra Mussels, along with snail eggs, planaria worms and other pests have always found a way to hitchhike onto certain plants– including moss balls – so its always imperative to ensure responsible steps are taken to eradicate them. This isn't something new.

The recently highlighted issues concern only LIVE zebra mussels, which have been classified as invasive in the USA only – there hasn’t yet been a live one reported in the UK, nor any issues of invasiveness, and it’s only live ones that are cause for concern. In the extremely unlikely event that you do ever find a live one, report it to OATA or DEFRA in the UK. Certainly don’t be alarmed if you ever find a dead one, its completely harmless. Moss balls are not banned in the UK.

We use a highly reputable supplier in Holland, who grows all moss balls in a captive environment to minimise the risk. To further reassure our customers, when the moss balls arrive here we freeze them for two hours prior to release, as advised by OATA. This isn’t harmful to the plant, but kills any hitchhiker, including zebra mussels, which may have found its way onto the plant. You can repeat this if desired.

As a rule we do not use copper treatments, but if you are concerned, dip your plants using a copper-based treatment product like ESHA Gastropex which is designed to eradicate pest molluscs, prior to adding to your tank. Please exercise caution using this method if you have any copper-sensitive species in your aquarium, such as shrimp.

If you have any related questions or concerns, please feel free to contact us.

In stock orders placed before 2pm will be despatched on the same working day (not including palletised items, pond plants or fibreglass ponds).

Pre-orders are shipped once we have the stock available and will be shipped using the service chosen at checkout.

All services are working day services and do not include delivery on Saturdays and Sundays or public holidays as standard. Deliveries are usually Monday to Friday only, although some Royal Mail items may be delivered on weekends as standard if the service is available in your area.

 Packet/Courier items    
 Royal Mail (2-3 days)  £0.00-£49.99 £2.99
 Royal Mail Next Day (1-2 days)  £0.00-£49.99 £4.99
 Parcelforce 24 (1 day)  £0.00-£49.99 £7.99
 Parcelforce 24 (1 day) *  £50 and up FREE
 Pallets (booked in)  aquariums / bulky items  

 Pallets Standard (3-5 days)


 Pallets Express (1-2 days)

 - £39.99


*EXCLUDED ITEMS  extra delivery fees apply:
 Fibreglass Ponds (booked in)    

 Zone 1 (7-10 days)

 - £79.99
 Zone 2 (7-14 days)  - £149.99
 Zone 3 (7-21 days)  - £249.99
Pond Plants (direct from grower)
All pond plants (3-10 days) one-off fee regardless of order size/value £5.99


* Orders over £50 that are under 2kg may be sent by a Royal Mail Tracked 24 service.

Please see our full delivery information page and terms and conditions for detailed information on shipping policies and zones


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