K2aqua Live Marimo Moss Balls for Aquariums

If you are looking for a low-maintenance live aquarium plant that adds natural decoration while helping to stabilise water quality, these Marimo moss balls are a simple option. As live aquarium plants they are suitable for both tropical and cold freshwater setups and can also be used in ponds, jars or terrariums. Each ball is small, roughly 2 to 3 cm across, so they work well in small tanks or grouped together for a more noticeable display.

Marimo absorb nitrite, nitrate, ammonia and phosphate from the water, so they can help reduce nutrient levels that feed nuisance algae. They need no special aquarium light, CO2 system or plant fertiliser, making them straightforward to keep in low-light or planted setups. They are commonly used in shrimp and snail tanks since invertebrates graze on their surface. For best appearance, reposition or gently roll them occasionally to prevent flat spots and remove trapped debris.

Key Features

• Live aquarium plant that helps maintain water quality by absorbing nitrite, nitrate, ammonia and phosphate
• Very low maintenance – no special light, CO2 system or plant fertiliser required
• Small, natural green spheres about 2 to 3 cm across – suitable for small tanks, jars and decorative placements
• Well suited to shrimp and snail tanks and useful as a natural way to compete with algae for nutrients

Frequently Asked Questions

Can I use these Marimo in tropical or coldwater aquariums or in a pond?

Yes. They are suitable for cold water or tropical aquariums and can also be used in ponds, jars, vases and terrariums as natural decoration.

Are these moss balls safe and suitable for shrimp and snail tanks?

Yes. Shrimp and snails particularly enjoy grazing on Marimo, making them a useful addition to shrimp and snail tanks for both feeding and habitat enrichment.

How big are the moss balls and how many come in a pack?

Each ball measures about 2-3 centimetres and the pack contains five Marimo moss balls, ideal for small aquariums or as additions to larger tanks or containers.

Do they need special lighting, CO2 or plant fertiliser to survive?

No special equipment needed. They require no special aquarium light, CO2 system, or aquarium plant fertiliser, making them easy for beginners to keep.

How do Marimo help control algae and improve water quality?

They absorb impurities such as nitrites, nitrates, ammonia and phosphate, competing with algae for nutrients and helping to reduce algal growth and improve water quality.

Check the recent prices for Live Marimo Moss Balls for Aquariums below.