Can anyone tel me what this?

travisty282

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Can anyone help me identify what this black slime is? I've added chemi-clean, already had a bit of cyano to get rid of. It doesn't look like cyano and no matter how much I google or how I word it, it doesn't show any results that match.

20221030_083648.jpg
 

CoralB

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It looks like cyano boardering dinos . I would dose a competing bacteria like microbactor 7 . If you have a UV light run it . Bring up your nutrients , your phosphates should be between 0.05 and .01 and nitrates between 10-15ppm . What are your parameters?
 
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travisty282

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It looks like cyano boardering dinos . I would dose a competing bacteria like microbactor 7 . If you have a UV light run it . Bring up your nutrients , your phosphates should be between 0.05 and .01 and nitrates between 10-15ppm . What are your parameters?
Nitrates are at 16.5
Phosphates are at .02(just dosed neo-phos today, were 0)
Ammonia 0
Nitrites 0
Mag 1280
Cal 490
Alk 8.9
Sal 1.026
Temp 77.8

I'll get the UV up and running. I dosed Microbacter-7 with the Neo-Phos.

Tank is established. Coralline, stable parameters, all coral and fish are happy. Just can't beat this black disaster.
 

olonmv

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Do they go away at lights out? If so, could be dinoflagellates. You’re probably gonna have to get a microscope to identify which type in order to treat.
 
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travisty282

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Do they go away at lights out? If so, could be dinoflagellates. You’re probably gonna have to get a microscope to identify which type in order to treat.
I checked about an hour after lights out and no change. Gonna check again before lights come on. Set up the UV sterilizer also.
 

CoralB

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Nitrates are at 16.5
Phosphates are at .02(just dosed neo-phos today, were 0)
Ammonia 0
Nitrites 0
Mag 1280
Cal 490
Alk 8.9
Sal 1.026
Temp 77.8

I'll get the UV up and running. I dosed Microbacter-7 with the Neo-Phos.

Tank is established. Coralline, stable parameters, all coral and fish are happy. Just can't beat this black disaster.
The zero phosphates is imo is what caused it . Cut back light intensity , manual removal, aeration, more water flow and keeping up with maintenance while watching your parameters. It may take a week to a month to rid this . Slow and steady will get you out of this . Also keep up the adding of competing good bacteria
 
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travisty282

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The zero phosphates is imo is what caused it . Cut back light intensity , manual removal, aeration, more water flow and keeping up with maintenance while watching your parameters. It may take a week to a month to rid this . Slow and steady will get you out of this .
Definitely working on it. Happy enough the fish and coral seem unbothered by it. Just gonna chug along
 

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