Yeah, it's an algae foo.
You can take a tooth brush to it.
Just take the rock out during a water change.
Put the rock in the old water and brush the algae off.
Nutrient levels must be low in your tank for the algae to not be growing....that's a good sign.
You can take a tooth brush to it.
Just take the rock out during a water change.
Put the rock in the old water and brush the algae off.
Nutrient levels must be low in your tank for the algae to not be growing....that's a good sign.
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