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dermer
02/21/2007, 10:33 PM
would granite in a reef tank be ok
dermer
02/22/2007, 08:29 PM
does ny one now if this would be ok or not
dermer
02/23/2007, 12:28 AM
bump
Tang Salad
02/23/2007, 12:54 AM
Sorry, wish I could help you...
All I know is that I've never seen anyone use granite in a saltwater aquarium before. It may leach bad minerals into the water.

Also, because granite is not porous, it would never really serve well as biological filtration.
dermer
02/23/2007, 01:06 AM
i was just mainly wanting to use small pieces to put frags on i work for a place were i can get all the small scraps i want
RumLad
02/23/2007, 08:19 AM
Perhaps if you were to boil the frag chunks before using them, to sterilize them, they would be okay?
Just my opinion though.
2639
02/23/2007, 08:25 AM
Try asking in the chemistry forum. Randy might have some insight on this.
wlagarde
02/23/2007, 08:50 AM
Granite is mostly silica (about 75%) and aluminum (about 10%) so this might be an issue. However, it might be just fine if at high pH the silica/aluminum stays bound up in the rock. Randy would be the person to ask about this...
victor_c3
02/23/2007, 01:58 PM
Also, minerals like garnite and fools gold are comonly prevalent with granite rocks. I might be wrong, but both of these minerals are rich in iron and other metal content - which I don't think is a good thing to have in a reef tank.
rustybucket145
02/23/2007, 03:13 PM
yeah, I thought granite contained iron as well....
wlagarde
02/23/2007, 03:19 PM
<a href=showthread.php?s=&postid=9317448#post9317448 target=_blank>Originally posted</a> by rustybucket145
yeah, I thought granite contained iron as well....

It does - but probably not an issue...
Hormigaquatica
02/23/2007, 03:26 PM
Ive seen granite used in cold water reefs a number of times with no ill effects. If youre just using it as decoration here and there, I imagine it would be fine- dont know why it would be any different in a tropical reef vs a temperate one.
rustybucket145
02/23/2007, 03:32 PM
what about copper? any chance it could contain that?
rstark33
02/23/2007, 03:33 PM
Same question for ceramic tile. Is it reef safe for frag mounts?
Hormigaquatica
02/23/2007, 04:06 PM
<a href=showthread.php?s=&postid=9317610#post9317610 target=_blank>Originally posted</a> by rstark33
Same question for ceramic tile. Is it reef safe for frag mounts?
Yes- have seen ceramic tile used many times with frags, esp xenia and zoanthids.
dermer
02/24/2007, 01:20 AM
thanks for all the feed back i shall ask randy