Cotton Candy Algae is a reef aquarium nuisance that can spread if early signs are ignored.
Identification: Fluffy pink to red branching clumps that resemble cotton and spread through attached fragments.
Treatment / Management: Manually remove full clumps with holdfasts, siphon loose fragments, and improve nutrient control to reduce recurrence.
Prevention: Inspect incoming frags and macroalgae carefully, quarantine when possible, and remove new growth immediately.
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