Brown stuff on sand and now getting on rock

[Budman's Corals]

Okay tank has been setup for e weeks from the swap new sand is this y I'm getting the brown stuff on the sand bed. What do I need to do Suck it up or leave it be

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[ritter6788]

Probably diatom algae or cyano. I'd leave it for now. If you don't like the look of it you can suck it out while doing water changes but it may come back soon after. Take extra care of nutrients and once the tank is more established it may go away on it's own.

 

[fragmatic]

-and- Install a clean-up-crew.

-and, I have "brown stuff" on my sand, IMO who cares, my tank is crazy healthy. That is what matters, most.

 

[that novice guy]

Yup ether diatoms or cyno just feed a tad bit less and clean up crew but what i did was turn my lights off for 3 days straight and on while feeding

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[mike007]

Is it brown or purple ? Could be corraline algae. If it is brown it will go away. Don't overfeed my friend.