Brown algae

[Abbass]

Help plz . Brown algae all my rock , my glass and my sand getting brown color
Nitrate 10 ppm
Ammonia 0 nitrite 0 alkalinity 8dkh
Calcium 480 mag 1350

 

[Thunt4jr]

How old is your tank? Do you have CUC? Do you have a wavemaker or powerhead?

 

[cloak]

Almost everything I'm seeing in those pictures looks kind of greenish, but the brown stuff your experiencing might be Diatoms. This is usually due to an abundance of Silicates in the water.

http://www.reefcleaners.org/nuisance-algae-id-guide

 

[Abbass]

tank you guys for your replies . i have 6 hermit crab and blue starfish ( linkia starfish )

 

[Abbass]

yesterday i got a turbo snail i acclimated for 20 min but till now its in the same place not moving hiding in the shell

 

[Thunt4jr]

Take the snail out of the tank and smell it. If it smells really bad, then it's dead.

Can you give us more information on your tank please?
How old is the tank?
Are you using tap water or RO?

 

[Abbass]

65 gal , 1 year , yea am using r/o water for ato , but i dont use RO WATER to make a water chaange , my tank water its sea water ( red sea water / saudi arabia )

 

[Thunt4jr]

Did you add anything recently like dry rock or live rock? Can you give us a better picture of your tank?

 

[Abbass]

a new Chinese led light 165 watt , can i use ro/di unit direct in the tank to help filtration