What are those brown stuff,pls?

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Celine

Aquarium Advice Regular
Joined
Mar 5, 2012
Messages
93
It looks like algae & it starts spreading everywhere.
What should I do, pls?



image-2520308611.jpg
 
Looks like diatoms? They feed off of silicates (from source water like tap or certain sand) or nitrate and phosphate. Try bringing down those levels and they will go away. Usually occurs in newly cycled tanks or aquariums with diminishing water quality.
 
I have the tank for approx. 8 months. It is a 14g bio cube.

Should I use the distill water for top up?
 
What are you using now? RO/DI is the best..anything else and you are potentially putting in silicates and phosphates into your water, feeding the diatoms.
 
Okay, it is strange, the brown stuff can move like slush, it is creepy, what is it?
 
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