Nuisance algae on glass

BGJames

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Recently started with this algae on my glass. It began as a thin, dust like covering but has since also developed this lightening strike like pattern. Tank is a year old and has been completely stable, with nothing added since some gsp back in March. My parameters were n03: 10 and p04: 0.01 but these have now dropped to 2 and 0 respectively. PH has remained stable at 8.3. Current stock is 2 clowns, 1 hermit, 5 nassarius snails. 110l with Tunze 9001 skimmer (Berlin method). Any help would be much appreciated.

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Fritz

PICK the Most Tested & Least Tested Parameters of your Tank (Pick 2)

  • Calcium (most)

    Votes: 48 6.1%
  • Alkalinity (most)

    Votes: 543 69.1%
  • Magnesium (most)

    Votes: 6 0.8%
  • Phosphate (most)

    Votes: 74 9.4%
  • PH (most)

    Votes: 74 9.4%
  • Nitrate (most)

    Votes: 83 10.6%
  • Nitrite (most)

    Votes: 7 0.9%
  • Ammonia (most)

    Votes: 24 3.1%
  • (least) Calcium

    Votes: 12 1.5%
  • (least) Alkalinity

    Votes: 4 0.5%
  • (least) Magnesium

    Votes: 76 9.7%
  • (least) Phosphate

    Votes: 16 2.0%
  • (least) PH

    Votes: 42 5.3%
  • (least) Nitrate

    Votes: 14 1.8%
  • (least) Nitrite

    Votes: 219 27.9%
  • (least) Ammonia

    Votes: 295 37.5%
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