White hard spots

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greenikat

Aquarium Advice Regular
Joined
Nov 10, 2012
Messages
52
I have white hard spots on my glass. Not sure what it is but I have to scrape it off. I have a 25 gallon salt.

image-1545580406.jpg
 
probably feather duster worms i get the on the inside of my powerheads\pumps\everything often. they are good for consuming organics but you can scrap them off
 
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