Cladophora Ball (Aegagropila linnaei) – Marimo Moss Ball
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Price per 1 ball. Choose the size: 3–4 cm, 4–5 cm or 5–7 cm.
Volume discount (all sizes count together, applied automatically in the cart): 5+ balls −5 % · 10+ balls −7 % · 20+ balls −8 % · 50+ balls −10 %.
Cladophora Ball (Aegagropila linnaei) – also known as Marimo Ball
The Cladophora Ball, or Marimo Ball, is a unique aquatic plant shaped like a fluffy green sphere. It has gained popularity among aquarists thanks to its distinctive appearance and beneficial properties. Unlike traditional plants, it is a colony of filamentous algae naturally formed into a compact ball.
Why choose a Cladophora Ball?
- Aesthetic appeal – a velvety green sphere that becomes a centrepiece in any aquarium.
- Water filtration – absorbs excess nitrates and phosphates and supports a healthy aquatic ecosystem.
- Haven for aquatic life – fish and shrimp explore it, play around it and graze on the microorganisms that settle on the ball.
- Low maintenance – extremely hardy, grows well under a wide range of conditions.
- Algae control – competes for nutrients and helps keep unwanted algae down.
Care requirements
- Lighting: moderate or diffused light (0.3–0.5 W/L). Avoid intense lighting so the ball does not break apart.
- Water temperature: 18–26 °C (best around 22 °C – it prefers cooler water).
- Water parameters: pH 6.5–7.5, medium hardness.
- Water flow: a gentle current keeps the ball healthy and distributes nutrients evenly.
Where to use Cladophora Balls?
- Shrimp tanks – a source of food and a safe hideout for shrimp.
- Decorative aquascapes – a great focal point for aquascaping designs.
- Nano aquariums – greenery for small tanks without taking up much space.
Marimo at a glance
- MARIMO — Natural aquarium decoration · Aegagropila linnaei · Sold individually
- Available sizes — 3–4 cm · 4–5 cm · 5–7 cm
- CHECKED. TREATED. — Parasite-free · Snail-free · Free of zebra mussels · Dreissena polymorpha · CHECKED AND TREATED BY US
- KEEP COOL. STAY BEAUTIFUL. — 10–25 °C · Avoid prolonged exposure to temperatures above 26 °C.
- LESS CARE. MORE NATURE. — LIGHT: Low light. No direct sunlight. · RINSE: At water changes, rinse in water taken from the aquarium. · TURN: Turn regularly to keep the rounded shape.
- NATURAL. HELP FILTER. — Help trap fine particles. · Absorb nutrients as they grow. · Support filtration and water changes. · Not a replacement.
Marimo FAQ
Is Marimo a plant or an alga?
Marimo (Aegagropila linnaei) is a natural freshwater green alga that slowly grows into a velvety ball. In the aquarium it behaves like a very undemanding plant.
Which water temperature does Marimo need?
10–25 °C is ideal. Avoid prolonged temperatures above 26 °C: in warm water the ball can weaken and slowly fall apart.
How much light does it need?
Little. Normal aquarium lighting is enough; keep it out of direct sunlight, which can bleach it.
Can I keep Marimo with shrimp and fish?
Yes. Shrimp and snails like to graze on its surface, and peaceful fish leave it alone. Large plant-eating fish can tear it.
Why is my Marimo floating?
Small gas bubbles from photosynthesis get trapped inside. Gently squeeze the ball in aquarium water and it will sink again.
Why does it turn pale or brown?
Pale or white patches usually mean too much light; brown patches usually mean dirt. Rinse it in aquarium water, turn it regularly and reduce the light.
How fast does Marimo grow?
Very slowly — only a few millimetres per year. That is normal: it keeps its size and shape for a long time.
Is your Marimo checked?
Yes. We check and treat our Marimo balls ourselves: free of parasites, snails and zebra mussels (Dreissena polymorpha).
How is it sold?
Individually, in three sizes: 3–4 cm, 4–5 cm and 5–7 cm. Choose the size you want and the number of balls in the cart.
After delivery, unpack plants carefully and place them in suitable aquarium conditions as soon as possible.
Shipping options and costs are shown at checkout. Live animals and plants are packed carefully for transport. Read our Shipping Policy.
For DOA or damaged orders, check the Refund Policy before opening the bags and contact us as soon as possible. Read our Refund Policy.
Questions about this product or your order? Contact us.
