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What is it???

S

sinkingbeach

I'm doing my water change/Christmas cleaning of the tank as I have friends and family coming over all weekend starting tomorrow. I come across this white stuff in the overflow? It's nowhere else in my tank and I'm afraid to disturb it as I don't want tit anywhere else in my tank. Ideas what it may be? There is a small layer of sand there also but this is forming on top of it.
233_19_12_07_2_38_17.jpg
 
RichT

RichT

Officer Emeritus
Officer Emeritus
Unless a better picture proves otherwise, I'm going to go with sponge as well.
 
C

Carlo

Could also just be carbonate buildup like many people get on their overflows and pumps. That's what white "dots" typically are. I have this on most of my tanks in the overflow sections.

Better pic is needed to know however.

Carlo
 
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