Orange (rust color) film Algea?! Covering my sump and equipment

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Chager01

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Hi, my sump, my skimmer, filter socks and even chaeto is covered with what seems like some film aglea, (diatom, cyano?) It's rust colors. Been like that for 2 weeks and it's only in the sump, DT is clean. Any help is welcome. Thanks!

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Bouncingsoul39

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looks like the normal algae film to me. don’t know the name. i always just wipe it off. running a phosphate/silicate removal media will slow it down considerably. the filter socks are dirty, need to be taken out ave cleaned once a week. many ways to do it. i do washing machine with bleach and dye/perfume free detergent and air dry in the sun.
 

reefsaver

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I have a theory that your DT is so clean that the Skimmer is skimming the super finite particles and it slowly builds up into a more polished film than the average sedimenty greyish-brown Skimmate I'm used to seeing. Although if any lighting is hitting the Skimmer I would blame that first and find a way to shade it along with the sump.
Although this is pure speculation and I have no real idea hehe. Interesting thread though.
 
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Chager01

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Do you run any type of GFO?

The few times I’ve seen this it usually ends up being the dust of rowaphos or the likes
I do run GFO, same GFO I run in my other system with no issue. The orange film is slimy like algea, it's not dust like, that's why I'm thinking it's algea.
 
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Chager01

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looks like the normal algae film to me. don’t know the name. i always just wipe it off. running a phosphate/silicate removal media will slow it down considerably. the filter socks are dirty, need to be taken out ave cleaned once a week. many ways to do it. i do washing machine with bleach and dye/perfume free detergent and air dry in the sun.
Yea filter socks looks dirty but they been there for only 2 days, that orange coloration occur almost immediately after the replacement. Does GFO remove silicate?
 
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