Local Rocks in saltwater tank?

[tent boy]

Is it ok to use a rock from a yard or stream in a saltwater aquarium? I heard of people using them in freshwater, but is saltwater different? Boil it first? Not talking about alot of them, just a couple. The tank is established so I dont need "live rock".

 

[magdelan]

The only thing that comes to my mind is the leaching of non desirable minerals into the water such as copper, etc. But, I don't really know.

 

[bigdoug]

Local rocks can leach minerals such as copper and chemicals. Yes they are used in freshwater, and I used them with no issues in freshwater. It is not a good idea in saltwater. someone with more "chemistry" knowledge will have to explain why.

 

[EllieSuz]

Ordinary rocks such as those found on "land" lack the porosity of ocean rock. They don't do a thing for your tank and as noted above, could introduce unwanted minerals to your system. What purpose would a different kind of rock provide? Are you thinking of it as a decorative item?

 

[RyanEG]

The rule for freshwater is if you put vinegar on it and it DOES NOT fizz then use it...this is the opposite of saltwater. It is highly not recommended IMO.

 

[Eastamherstbias]

I would not take the chance.

Can we see the rock in question?


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[Willistein]

I guess I'm wondering why you would want to take the risk in a 170 gallon mixed reef?

 

[Gary Majchrzak]

I used some igneous rock in constructing my first (75 gallon) reef aquarium.
A Favia ended up totally encrusting a round piece of granite. It was very kewl.

Joseph Yaiullo, (Curator/Co-Founder Atlantis Marine World, LI, NY) used a lot of terrestrial rock in the construction of their big reef aquarium display.
I can't remember the type, though.

That being said, for any home reef aquarium I would recommend using the best (oceanic) real liverock that you can afford.