Chaetomorpha Care Guide
Chaetomorpha linum · Saltwater algae
What Chaetomorpha look like
Dense, tangled masses of rigid, bright green filaments resembling steel wool or fishing line. Individual strands are unbranched and 1–2 mm in diameter. Forms tumbling balls in refugiums.
Behavior & temperament
Extremely fast-growing macroalgae used for nutrient export in refugiums and sump sections. Non-invasive — does not attach to rock or coral. Ideal for natural nitrate and phosphate removal.
Diet & feeding
Photosynthetic autotroph consuming nitrates and phosphates as primary nutrients.
Behind the name
From Greek 'chaite' (long hair) and 'morphe' (form).
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Chaetomorpha?
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