Help

[ianhrfrd]

my sand in my marine tank keeps going brown can i stop it

 

[Ehudd]

How long has your tank been set up for? if it is new its all part of a cycling process.
it will go.

 

[idlefingers]

Like Ehudd said, how long's the tank been setup for? But also, what are your water stats? What kind of filtration are you using? Is the tank stocked? If so, what's the stocking?