Small Mud-Mat: Glossostigma elatinoides
A tiny, bright green carpeting plant from New Zealand that forms a dense lawn under high light and CO2.

Small Mud-Mat
Glossostigma elatinoides, commonly known as Small Mud-Mat, is a highly coveted aquatic plant recognized for its delicate and vibrant foliage. This low-growing plant forms dense mats of bright green, linear leaves that thrive when placed in a well-lit aquatic environment. Ideal for foreground landscaping in aquascapes, Glossostigma elatinoides creates an inviting and lush landscape, effectively outlining pathways and enhancing the visual depth of the aquarium. Its capacity for dense growth and carpet formation makes it a staple among aquascapers.
Care Guide
Maintaining Glossostigma elatinoides requires attention to several key factors:
-
Lighting: Provide high-quality, bright light for at least 8 to 10 hours daily, preferably with full-spectrum LED or fluorescent lighting. Insufficient light may inhibit growth and cause leggy, unattractive appearances.
-
Substrate: Use a nutrient-rich substrate that promotes root development and provides essential nutrients.
-
Water Parameters: Maintain a temperature range of 20-28°C (68-82°F), with a pH level of 6.0 to 7.5 and moderate hardness. Regular water changes are essential to prevent the buildup of harmful compounds.
-
Trimming: Regularly trim overgrown sections to promote bushier growth and prevent algae buildup.
-
Propagation: Glossostigma can be propagated by clipping sections and replanting them in the substrate, ensuring each segment has a few healthy leaves.
Nutrient Requirements
For optimal growth, Glossostigma elatinoides has specific nutrient needs:
-
Light: As mentioned, ensure it receives strong, but not excessive, lighting. Monitor for signs of stress such as yellowing leaves, which may indicate inadequate light.
-
CO2: Injected CO2 is beneficial for promoting lush growth, particularly in high-light setups. Aim for a CO2 concentration of 20-30 mg/L.
-
Fertilization: Utilize liquid fertilizers rich in nitrogen, potassium, and trace elements. Regular dosing can help maintain vibrant growth and health.
Natural Biomes
Glossostigma elatinoides is indigenous to freshwater biomes where it often flourishes. Notable natural habitats include:
- Amazon Basin: A rich and diverse environment supportive of various aquatic flora.
- Orinoco: Home to a wealth of aquatic species and suitable water conditions, ideal for Glossostigma.
- Mekong Delta: Features extensive wetland areas that provide a natural habitat for various aquatic plants.
Livestock Compatibility
Glossostigma elatinoides supports a variety of aquatic life. Peaceful species such as tetras, guppies, and small rasboras thrive alongside this plant. Additionally, shrimp species like Cherry Shrimp and Amano Shrimp benefit from the cover and food sources provided by the dense foliage of Glossostigma. Care should be taken to ensure that larger or more aggressive species are avoided, as they may disrupt the delicate mat it forms.