Bryopsis and gha?

Joffunswife

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Hi all. Can anyone identify if this is Bryopsis mixed with some GHA. Is flux still the go to cure? Thanks

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Subsea

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Elbow grease and janitors are sustainable for controlling gha. Bryopis is a type of gha.

AI agrees with you. I don’t The use of a fungicide as an algecide has long term effects.
I have some Bryopis & some gha in my 25 year mature 75G.. The CUC and I maintain ascetics.


Key Differences and Identification
  • Appearance: Bryopsis looks like tiny, dark green ferns or feathers. Hair algae appears as soft, bright-to-dark green hair-like strands.
  • Texture/Structure:Bryopsis feels wiry and holds its shape when removed from water. Hair algae turns into a limp, slimy clump when taken out
    .
    • Growth Pattern: Bryopsis spreads fast, forming dense, root-like mats that can be difficult to pull off rocks.
    • Removal: Pulling Bryopsis often shatters it, spreading it further, whereas hair algae comes off in large clumps.

Comparison Table

FeatureBryopsisGreen Hair Algae (GHA)
AppearanceFern-like, featherySingle strands, hair-like
ColorDark GreenBright to Dark Green
TextureRigid, wirySoft, slimy
RemovalHard (roots, shatters)Easier (pulls in clumps)
Best CureFluconazoleManual removal, Cleanup Crew


Management Tips
  • Bryopsis: Highly resistant to manual removal; fluconazole is the most effective solution.
  • Hair Algae: Nutrient control (reducing nitrates/phosphates), manual removal, and grazing animals like urchins or turbos.
 
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