dolomite

[cocoa_pleco]

has anyone used dolomite in SW tanks?

Since its a ugf and biowheel im using, i can use either crushed coral or something called dolomite.

What is dolomite, and which is better?

[Fishguy2727]

Dolomite is pretty much limestone, which is just fossilized (pressure smashes it all together) coral reefs. Since the composition is chemically about the same between the two, I would focus on the size and shape of the pieces of substrate and see which one seems a better fit for the UGF and the animals.

[cocoa_pleco]

which would you recommend? which is a bit smaller than the other

[Fishguy2727]

I'm not sure which is smaller, it would probably depend on how much they break up the dolomite. If the LFS has both just compare the two.

[cocoa_pleco]

well, only one of my lfs has either crushed coral or dolomite, and they only have 20lbs of dolomite for 10$. That'll work.

I wont get it till friday because i guess its below tons of boxes in the warehouse and they have to dig for it