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Old 11-20-2017, 09:23 PM   #1
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Is this coraline algae?... Again?

I know I already made a post about another algae in my tank thinking it might be coralline, BUT now there is this new algae and it has been growing very slowly. It is yellow and in person it looks hard rather than slimy
pH: 8.0
Salinity: 1.023
dKH: 11
Calcium: 420
Magnesium: 1355
Temperature: 80 degrees Farenheit
Ammonia: 0
Nitrite: 0
Nitrate 2.5
Phosphates: 0.05
It is a yellow color
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Old 11-20-2017, 09:25 PM   #2
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Cyanobacteria
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I'm not really here... fell in the tank and my phone is just that smart
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Old 11-20-2017, 09:36 PM   #3
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Take a toothbrush to it. Itíll all come off. Itís Cyanobacteria. You wonít get any nitrate readings with that much in the system.
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Old 11-20-2017, 09:37 PM   #4
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Ok thank you!
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Old 11-20-2017, 09:59 PM   #5
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green slim / cayno big water changes to remove excess nutrients fueling it
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