Brown growing in mud?

[Bkmrsteel]

I have brown patches growing in my refugium. When the lights are off, it slowly fades away. When the light is on, they come back and become very dark. Is this brown algie?

 

[Readingexcalibur]

That's diatom algae, it is eating silica traces from the water column. It is fine in your sump and will soon dissipate as long as you are using RODI for water changes.

 

[Bkmrsteel]

That's diatom algae, it is eating silica traces from the water column. It is fine in your sump and will soon dissipate as long as you are using RODI for water changes.

Is it bad? I'll do some looking,

 

[Readingexcalibur]

It's not bad... Necessarily... Normally it goes away on its own after the food supply is gone. Just don't over feed and watch products with silicates (silica or pool filter sand for example).

More than anything, it's just ugly to look at.

 

[Bkmrsteel]

It's not bad... Necessarily... Normally it goes away on its own after the food supply is gone. Just don't over feed and watch products with silicates (silica or pool filter sand for example).

More than anything, it's just ugly to look at.

Its only in my refuge, none growing in my tank. I could relocate a snail in there I guess

 

[Readingexcalibur]

Wouldn't matter. Like I said, it will go away on its own when the food supply goes away. Snail probably wouldn't make even a minute difference.