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Algae and mystery deposits

1K views 1 reply 2 participants last post by  Gizmo 
#1 ·
I have some strange spots that have appeared in my tank. I'm wondering if anyone can tell me what it is and how to stop it? Also some strange build-up that looks like calcium or sand but it's all along a corner vertically that is totally submerged. I am on well water and can't tell you anything other than it's hard, high in iron, sulfur and calcium i believe. Yes it's cloudy I was cleaning my algae off the walls.
 

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#2 ·
Looks like diatoms. They should go away on their own after a bit. If you're really annoyed with them, get some otocynclus catfish. They love diatoms.
 
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