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Green Dust Algae
Chlorophyta (various)
Family: Chlorophyta
📍 Worldwide in aquariums and still freshwater
Fine, powdery green coating on the glass that wipes off easily but returns quickly. Different from Green Spot Algae — much softer and more responsive to physical removal. A large clean-up crew (nerites, Mystery snails, Otocinclus) keeps it in check. Usually a sign of moderate light excess.
Keeping this species
- role
- nuisance
- cause
- moderate light excess, new tank cycling
- control
- reduce photoperiod, Otocinclus, nerite snails
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Natural Habitat Temperature
64°F — 79°F seasonal range · (Jan low, Jul high)