Sand Bed....

[Bubblewood]

I'm posting this here cause my tank is mostly SPS. Just don't know if this would
affect them.
Looking for some advice on adding more Fiji pink sand to my
tank. I currently have about 2.5" of a sand bed. Which is slightly covered in
small areas of algae. It's not cyno, slime, green, purple, hair or anything like
that. Its just discolored light brownish. I have lots of CUC running thru it.
Just want to give my bed a cleaner look. Can I just add new rinsed sand on top
of the old? Working in small sections? Or will this cause weird stuff to happen
to my water parameters? My tank is mostly SPS.
What's your thoughts on
this?
Thanks!

 

[Ringo®]

Sounds like diatoms to me. They feed of the silicates in sand.....pretty common in newly established tanks. If that's what it is, adding more sand is just going to start the process over.

 

[Bubblewood]

Tank has been up and running for about a year. It's spotty around the bottom. I just see some tanks on here that have a very clean sand bed. I don't siphon the bed maybe I can just start in small areas at a time.

 

[Ringo®]

How long has it been around? Should go away on it's own once it's food supply is used up.

 

[Bubblewood]

For about a month or so. I have increased my feedings also. Skimmer has been doing a great job doing it's thing. Phos is .05 / Nitrates 3ppm

 

[Ringo®]

Have you added anything in the last few months that might kick up the sand?

 

[Bubblewood]

No.... Just a few new SPS acclimating to my lights.