How Much Liverock Should I Use?

[cynos]

My tank measures 48inches x 24inches x 24inches
I think thats about 500litres
My question is how much live rock should I use?

I plan to have a sump with a deltec 600 skimmer and live sand.
I'll also be investing in a RO unit, any recommendations? not to costly either!

 

[SkiFletch]

Ok first, onlineconversion.com Is your friend

A tank with those dimensions is 120 US gallons. Given that volume you should have a bare minimum of 120lbs of LR, and 160-180 would be a little more reccomended. Also, a tank that size is a good candidate for UV or Ozone sterilization to keep things like bacteria or parasites at bay. Most atnks 50g and up are excellent candidates for this. My own included

 

[cynos]

Ok first, onlineconversion.com Is your friend

A tank with those dimensions is 120 US gallons. Given that volume you should have a bare minimum of 120lbs of LR, and 160-180 would be a little more reccomended. Also, a tank that size is a good candidate for UV or Ozone sterilization to keep things like bacteria or parasites at bay. Most atnks 50g and up are excellent candidates for this. My own included

Thanks Skifletch

also The tank is drilled with two 35mm tubes running to the surface to bring water to the sump
I've a 70litre tank which I'm going to turn into a sump and I'm looking for a quiet return pump
where does the UV light go? sorry may sound like a silly question

 

[SkiFletch]

Well, UV sterilizers are sealed chambers with a UV bulb in the middle. Water passes between the dark outer walls and the sealed bulb to be exposed to UV light. The UV or ozone, kills microbs (bactiera/parasites) and does other water sterilization. They usually go in-line with the return pump from the sump.

 

[crazyelece]

I would use 120-200 lbs of live rock.

Also if you use a UV unit I would use it independant of your return. If it is on your return it will kill beneficial organisms such as pods before they have a chance to get to and populate your tank.