Charter Member
well, wouldnt the major difference be a rock made of calcium carbonate and a rock made of aragonite? Never really thought about it much to tell you the truth... having had a 400 lbs piece of texas holy rock in my front yard growing up, and having seen said piece of rock sprayed with fertilizer several times by my mother, if figured the major difference between THR and LR is that the former will NEVER get in my tanks... to many 'if's' involved for me... but... that is just me.
"Maybe in order to understand mankind, we have to look at the word itself: "Mankind". Basically, it's made up of two separate words - "mank" and "ind". What do these words mean ? It's a mystery, and that's why so is mankind." ~ Jack Handey
Web Member
Aragonite is calcium carbonate. Calcium carbonate is its chemical name. Aragonite is a geological form that is primarily composed of calcium carbonate.
The main difference is porosity. Limestone gas been compressed over million of years. All of the tiny pores that are typical of LR have been compressed into something that is more solid. Aragagonite is relatively young, in geological terms. It was never deeply buried under other sediments and therefore retains its porosity.
Gary
Gary
125 SPS, 75 gal. LPS/softie reef, 9 gal. Nano
Charter Member
Hmm.. I thought arragonite was a more crystaline form of calcium carbonate... am I mixing it up with Calcite? the stuff urchins use to re-enforce their beaks?
"Maybe in order to understand mankind, we have to look at the word itself: "Mankind". Basically, it's made up of two separate words - "mank" and "ind". What do these words mean ? It's a mystery, and that's why so is mankind." ~ Jack Handey
Web Member
Ram, too bad you werent offering that fish a couple of months ago, I was desperately searching for one to no avail, ended up getting a nice pair of Tomatoes.
Web Member
There are a few pics in my gallery of my 29 gallon with black substrate:
30 Gallon reef, 220 gallon South American Cichlid tank.
Posting Permissions
Reply With Quote