Active sandbed.

[Papa Doug]

Pics of the 5 inch sandbed in my large overflow.

[Papa Doug]

Here is the other

[ReefHawk]

Looks great Doug! Definately teaming with life! How long has it been going?

[golfish]

Looking good Doug, I'm getting a few more bags of the HD sand and besides using it for my refugium I'm going to put 4-5" in my overflows. I just need to figure out how to remove the standpipes and leave the sand. I think I put a coupler in at the bottom of the overflow......

Mark

[Papa Doug]

Its only been in the overflow for a few months. But the sand was from the tank/refugium. Some of its a few years old. I saved as much as I could, when moving last year, but hard to move much sand and keep it alive.

Mark, I have a fixed portion, about 6in. up the overflow. Then a coupler, above the sands level as seen in the pics. Pretty easy to get my hand in there though,as its large.

Nice way to clean up. As the extra food and debris from the tank goes into the overflow, its taken care of by the many worms. Also have a couple scarlets in there. Any remaining food/debris then goes into the sump/deep sanbed/refugium. It needs feeding though, as not enough gets in there.

Then all the extra foods, plancton, bugs, , etc, from the sump/refugium, get fed through the pump, back to the tank. Nice cycle.