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Innovative Marine Aquariums

Strange brown algae like substance on surface of water


Dumph

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I have a 90l nano about 16 weeks old and clearer crew + boxing shrimp, blue yellow tailed damsel, royal gramma, and maroon gold barred clown with green bubble tip anemone but over the last couple of days a scum like algae has formed on the surface of the water. I have live rock and a skimmer but am unsure as to what this is - anyone enlighten me and put my mind at rest as to whether or not I should be worried about it? :huh:

Many thanks

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how much surface agitation do you have?

 

Virtually none :mellow:

 

Not sure of what it is. Does it look like grease floating on the surface? And does it have a dark color to it?

 

I would skim the crud off the surface.

 

 

No thankfully it doesn't look like grease - i had thought about skimming it off - might give it a try later - thanks

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Virtually none :mellow:

 

 

 

 

No thankfully it doesn't look like grease - i had thought about skimming it off - might give it a try later - thanks

 

 

This is what your water's surface should look like more or less.

24ou6xc.jpg

 

TY to Neanderthalman for the picture from his build thread.

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