[ATLANTIS]

I was admiring all the colors in my DSB's and thought it would be fun to put up a page with some of the cooler colors...
http://www.atlantisaquatic.com/dsb.html



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Brian
Atlantis Aquatics
Tank Aquacultured Corals
http://atlantisaquatic.com

[waterboy]

Whoa! How long has your tank been set up? Did you use some special kind of sand?

[ATLANTIS]

Each pic is from a different tank.

most have been up only 2.5 years....

1" Aragonite
5" Southdown
1" Fiji LS



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Brian
Atlantis Aquatics
Tank Aquacultured Corals
http://atlantisaquatic.com

[Bughead]

How funny, I thought all that red and green stuff looked gross, so I put a 4" strip of black contac paper around the bottom of the tank. I guess beauty is in the eye of the beholder.[img]/ubb/smile.gif[/img]

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If it's broke, don't fix it---hide it.

[skipm]

what makes the different colors, is this a type of coralline or is the sand solidified?

[ATLANTIS]

I found this at reefcentral... posted br Dr. Ron Shimek

Generally - for colors, presuming one starts with white sand.
Top layer - white, oxygenated region, generally about 1/2 to 1 inch deep. May have green microalgae, brown or golden diatoms or brown dinoflagellates in it. All or none of the algae are normal and no cause for concern.

Middle layer - tan to light grey. Reduced oxygen region, below top lay to depth of 4 to 6 inches. Bubbles are common here, as this is the nitrogen reduction zone. May have black, purple, red, or green cyanobacterial growth or colors evident. All or none of the algae are normal and no cause for concern.

Lower layer - dark grey to (rarely) black. No oxygen zone. Below middle region, typically 6 to 8 (or more) inches below the surface. Not much bubble production. Zone of sulfur and phosphate reduction. May have black, purple, red, or green cyanobacterial growth or colors evident. All or none of the algae are normal and no cause for concern.

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Brian
Atlantis Aquatics
Tank Aquacultured Corals
http://atlantisaquatic.com