Lava rock

dward254

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Feb 24, 2003
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Hello,

Another newbie question

I am about 17 days into my cycle. I have about 1 in of mixed black sand and some small crushed coral. About 50 lbs of pourous lava rock and a few lbs of tufa. Additionally, a couple of lbs of live rock. I am using an emporer 400, which I have found should have the biowheel taken out after the tank cycles.

Finally, my question, I read on another forum that the lava rock may contain some metals or addional minerals that could cause problems in the tank. Should I remove these rocks now or wait until the cycle completes. Also, can the black sand be a potential problem? (Rock and substrate purchases were suggested by my lfs. And, once again, I have found that I should have researched more:( ) Thanks.
 
i got a question about lava rock too??? i have seen people add tufa rock to their tanks (with live rock)and it eventually becomes live rock. i got boatloads of lava rock and was wondering if the same thing would happen. any info would be greatly appreciated. thanx.
 
I've never heard of any problems with lava rock, and it is porous enough that I'm sure it would become a good biofilter. Well, lemme rephrase that. I haven't heard of any problems with it, but they could exist. But I think the chances of it happening are the same chances you take when you put other base rock in, or a fish that may have parasites, or the like. Check and see if you know where the rock came from.
 
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