Black Beard Algae Care Guide
Audouinella sp. · Freshwater algae
What Black Beard Algae look like
Dark green to black tufted filaments, 0.5–3 cm long, growing in dense brush-like clumps attached firmly to hard surfaces, driftwood, plant leaves, and filter intakes. Texture is coarse and wiry.
Behavior & temperament
Spreads rapidly in low CO2, high-phosphate conditions. Thrives in areas of high flow. Extremely difficult to remove mechanically as it anchors deeply into surfaces.
Diet & feeding
Photosynthetic autotroph feeding on dissolved nutrients, particularly phosphates.
Behind the name
Named for its dark, bristly appearance resembling a beard.
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Black Beard Algae?
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