Class
Common name: Green Algae
Scientific name: Ulvophyceae
Ulvophyceae, commonly known as green algae, are a class of marine and freshwater algae that include many species commonly found in reef aquariums. They are photosynthetic and range from unicellular forms like Chlorella to multicellular forms such as Ulva, also known as sea lettuce. While some green algae are beneficial in small quantities, providing oxygen and removing nitrates, they can become problematic if they overgrow, competing with corals for light and nutrients. Hobbyists often manage their growth through controlled lighting, nutrient management, and grazing by herbivorous fish and invertebrates.
- Common name: Mermaid's WineglassScientific name: Acetabularia crenulata
- Common name: Green Felt AlgaeScientific name: Avrainvillea nigricans
- Common name: Boodlea compositaScientific name: Boodlea composita
- Common name: hen penScientific name: Bryopsis plumosa
- Common name: Caulerpa brachypusScientific name: Caulerpa brachypus
- Common name: Fern CaulerpaScientific name: Caulerpa chemnitzia
- Common name: Caulerpa floridanaScientific name: Caulerpa floridana
- Common name: Mexican CaulerpaScientific name: Caulerpa mexicana
- Common name: Caulerpa nummulariaScientific name: Caulerpa nummularia
- Common name: Caulerpa PaspaloidesScientific name: Caulerpa paspaloides
- Common name: Leafy caulerpaScientific name: Caulerpa prolifera
- Common name: Razor CaulerpaScientific name: Caulerpa scalpelliformis
- Common name: Sawblade CaulerpaScientific name: Caulerpa serrulata
- Common name: Feather AlgaeScientific name: Caulerpa sertularioides
- Common name: Killer algaScientific name: Caulerpa taxifolia
- Common name: ChaetoScientific name: Chaetomorpha aerea
- Common name: Spaghetti algaeScientific name: Chaetomorpha linum
- Common name: Turtle WeedScientific name: Chlorodesmis fastigiata
- Common name: Green Hair AlgaeScientific name: Cladophora herpestica
- Common name: Green Hair AlgaeScientific name: Cladophora prolifera
- Common name: rock-weedScientific name: Cladophora rupestris
- Common name: Velvet HornScientific name: Codium adhaerens
- Common name: Codium arabicumScientific name: Codium arabicum
- Common name: Green Fleece AlgaeScientific name: Codium decorticatum
- Common name: Green Felt AlgaeScientific name: Codium edule
- Common name: Dead Man's FingersScientific name: Codium fragile
- Common name: Green Felt AlgaeScientific name: Codium intertextum
- Common name: Green Felt AlgaeScientific name: Codium vermilara
- Common name: DerbesiaScientific name: Derbesia marina
- Common name: Green Bubble AlgaeScientific name: Dictyosphaeria cavernosa
- Common name: Green Fern AlgaeScientific name: Flabellia petiolata
- Common name: Halimeda copiosaScientific name: Halimeda copiosa
- Common name: Halimeda AlgaeScientific name: Halimeda discoidea
- Common name: Halimeda PlantScientific name: Halimeda incrassata
- Common name: Large leaf coralline algaeScientific name: Halimeda macroloba
- Common name: Halimeda MicronesicaScientific name: Halimeda micronesica
- Common name: Halimeda opuntiaScientific name: Halimeda opuntia
- Common name: Calcareous Green SeaweedScientific name: Halimeda tuna
- Common name: Green Cactus AlgaeScientific name: Neomeris annulata
- Common name: Parvocaulis parvulusScientific name: Parvocaulis parvulus
- Common name: Shaving Brush AlgaScientific name: Penicillus capitatus
- Common name: Mermaid's Wine GlassScientific name: Penicillus dumetosus
- Common name: Phoenix Worm SnailScientific name: Rhipocephalus phoenix
- Common name: Mermaid's FanScientific name: Udotea flabellum
- Common name: Mermaid's FanScientific name: Udotea spinulosa
- Common name: GutweedScientific name: Ulva intestinalis
- Common name: Green LaverScientific name: Ulva lactuca
- Common name: Sea LettuceScientific name: Ulva linza
- Common name: Sea LettuceScientific name: Ulva prolifera
- Common name: Sea LettuceScientific name: Ulva rigida
- Common name: Bubble AlgaeScientific name: Valonia macrophysa
- Common name: Bubble AlgaeScientific name: Valonia utricularis
- Common name: Bubble AlgaeScientific name: Valoniopsis pachynema
- Common name: Sailor's EyeballScientific name: Ventricaria ventricosa