Lava Rock for base rock?

[peregrinus]

i do the same thing for the utah rock put it on a sump or refug and just let it stew for a while. in fact the tank the i just started i did this very same process i had corals in it with in a few days of setting it up.

[pfloyd19732003]

Hello,

i was thinking about adding some lava rock to my tank, but i got talked out of it. I chose lace instead, coralline grows a lot faster on it and also has the shap for good surface area that a SPS coral can grow on to. I mean that its mostly flat or round and doesnt have all the nooks and crannies that a peice of fiji rock would have

peace

[Reefmaniac1]

Lava rock can be FULL of phosphates. So my suggestion would be to avoid using it.

[dakar]

No worries here, the notion was quickly abandoned it was more out of curiosity than anything else.

[JustDavidP]

I've used both lava rock and lace rock before with miserable results. I had bad algae outbreaks both times. Upon removal of the rock ..viola! Gone.

As far as aquaculturing rock, I'm pretty sure that the farmers are using land based rock that was actually "water rock" years ago and left dry by receding waters, oceans, glaciers etc. Other than that, they are actually making the rock in molds, using only trusted materials.

Dave