What kind of bottom (substrate) do you have?

[Paul B]

There is no catagory for reverse UG filter with dolomite so I can't vote. :fear:

 

[stylaster]

I should have put in an 'other' choice.

 

[Acroholic]

465 gallon SPS tank with hybrid glass/pvc bottom. PVC is dark gray and is the visible (top) part of the bottom. About 45,000 gph in-tank water flow. Bottom is covered with purple coralline and stays incredibly clean r/t all the flow in the tank.

 

[Ajk'sreef]

I run a bare bottom

 

[Genesis Corals]

I just love the look of a clean white sandbed. I use a shallow sandbed that my CUC and Gobies can keep clean.

 

[stunreefer Verified Sponsor]

I do bare bottom cause it makes it easy to get all the detritus out of the tank.

Same. High flow on bottom = clean tank

 

[Paul B]

My fish hate a clean tank, it gives them gas.

 

[stunreefer Verified Sponsor]

My fish hate a clean tank, it gives them gas.

:thumb:

 

[Dave3112]

I keep a 2-3" course sand bed.

 

[nitro'sreef]

bare bottom

 

[stylaster]

465 gallon SPS tank with hybrid glass/pvc bottom. PVC is dark gray and is the visible (top) part of the bottom. About 45,000 gph in-tank water flow. Bottom is covered with purple coralline and stays incredibly clean r/t all the flow in the tank.

Got a picture of that?

 

[Acroholic]

Got a picture of that?

Here's a video from several months ago. Tank was only set up for a couple months at this time.

Acroholic's 465 gallon SPS Tank - YouTube

 

[stylaster]

Nice tank thank you for the video link!

 

[Kware0112]

Shallow, clean sandbed here too.


Mike's 58g daily struggle.

 

[Snook65]

My current 48x24x24 started as a 4" DSB in 2001. I removed the sand and replaced it with starboard around 2005. Then ran it barebottom until around March of this year when i added around 1" to 1-1/2" of sand back. I like the more natural look of sand, but it was a pain for a while with all the water movement, plus my 8-9 year old Maroon Clown likes to keep his corner of the tank swept free of sand.