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mcgyvr · 02/20/2017, 02:46 PM

100% Normal..
The brown is "diatoms" which are very common in a new tank and will disappear fairly quickly as the excessive silicates are consumed by the diatoms..
Once the silicates are gone the diatoms have no food and as such die out..

Typically then you will start to get green film/hair algae.. then even some cyano bacteria..
Its all normal as the tank is "maturing" and provided you keep nutrients (nitrates/phosphates) low they will go away too..

02/20/2017, 02:46 PM	#2
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	100% Normal.. The brown is "diatoms" which are very common in a new tank and will disappear fairly quickly as the excessive silicates are consumed by the diatoms.. Once the silicates are gone the diatoms have no food and as such die out.. Typically then you will start to get green film/hair algae.. then even some cyano bacteria.. Its all normal as the tank is "maturing" and provided you keep nutrients (nitrates/phosphates) low they will go away too.. __________________ Who me?