DIY live rock gray or white cement?

[Rob78]

Hello everyone
For some reason I cant find white cement so I went ahead and I got the gray color cement, I did my rock and they look pretty good for a first time they are awesome!! I'll take some pics later my question is:

Whats the difference between the gray cement and white cement? is it just the color cosmetic stuff? would white would look better in my tank than gray? or is there a reason why I should use white cement?

thanx

[BillD]

Both colors are Portland cement. I believe the color depends on the limestone source. I'm guessing the only reason to use one over the other (besides cost) is for a particular appearance.

[Phranque]

You're right up my alley on that one.... I'm a QC manager for a concrete company.

Bill is correct.... The only real difference between regular grey cement & white cement is the cost. White costs a LOT more due to the aggregate required to produce it, and is primarily for architecturally aesthetic purposes.

[black hills tj]

Originally Posted by Rob78

Hello everyone
For some reason I cant find white cement so I went ahead and I got the gray color cement, I did my rock and they look pretty good for a first time they are awesome!! I'll take some pics later my question is:

Whats the difference between the gray cement and white cement? is it just the color cosmetic stuff? would white would look better in my tank than gray? or is there a reason why I should use white cement?

thanx

It'll be covered in coraline, corals, and critters in no time, so color won't even matter soon.