White disks all over my tank, any ideas?

Wbflyer

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Hello all,

New to the site but not to reefing! I had this weird flat dots appear all over my tank and they are not going away. They are soft, not hard or anything and seem to be like little disks. Any idea what it might be?

Thanks!

IMG_1533.jpg
 

eschaton

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Those are foraminaiferans - often called forams. They're actually a macroscopic type of single-celled organism - kinda like a giant amoeba with a shell.

Forams are totally harmless. Some species are photosynthetic due to symbiotic algae, but they also eat detritus and nano-plankton. They can't hurt anything of any size in the tank.
 
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Wbflyer

Wbflyer

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Thank you!!! So they are even on my coral, really strange but how do you get rid of them? Do certain animals eat them? Thanks again!!
 

reef lover

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+1 to forams! But i have seen them get quite invasive...im not seeing alot of info for ways to erradicate besides nutrient control.
 
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