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A pic of the algae would help to ID it. Most unwanted algae in the SW
are directly caused by too many nutrients. High levels of NO3
are the main culprits. Can you post your levels? The best defense against this type of algae is regular and frequent water changes using high quality RO
water. 15-20% every three days to start. You should also examine your feeding schedule/techniques. PO4
and excess NO3
are often introduced to the tank through feeding. Can you list what you currently feed...how much, how often and how it's prepared?