Common name: Spaghetti algae

General information

Chaetomorpha linum, commonly known as Chaeto or Spaghetti Algae, is a green macroalgae that is highly valued in the saltwater aquarium hobby for its nutrient export capabilities. It is a fast-growing, filamentous algae that forms loose, tangled masses, resembling a ball of green spaghetti. Chaeto is non-invasive and does not attach to rocks or substrate, making it easy to manage and harvest.

Care

Chaeto is relatively easy to cultivate in a saltwater aquarium, often placed in a refugium where it can grow undisturbed by fish and other tank inhabitants. It requires moderate to high lighting to thrive, typically in the spectrum of 5000 to 6500 Kelvin, which promotes photosynthesis. Adequate water flow is also important to ensure that the algae receives a steady supply of nutrients and to prevent dead spots where detritus can accumulate. Regular harvesting is recommended to maintain optimal growth and nutrient export.

Symbiosis

While Chaeto itself does not engage in any specific symbiotic relationships within the aquarium, it plays a crucial role in the overall health of the ecosystem. By absorbing excess nutrients such as nitrates and phosphates, it helps to prevent algae blooms and maintain water quality, indirectly benefiting all tank inhabitants.

Habitat

Chaetomorpha linum is found in a variety of marine environments, from shallow intertidal zones to deeper waters. It is adaptable to a range of conditions but prefers areas with good water movement and light availability.