Johannes Visser Posted December 27, 2007 Report Share Posted December 27, 2007 Hi wanted to know if the stone in the pic is corral off some sort or volcanic ! Any idea where I could find some ? Quote Link to comment Share on other sites More sharing options...
Mrs Frog Posted December 27, 2007 Report Share Posted December 27, 2007 Could it be Pumice??? Quote Link to comment Share on other sites More sharing options...
ryanjury Posted December 28, 2007 Report Share Posted December 28, 2007 Yep looks like pumice to me Should find it at the beach or lake taupo if you wanted big bits.. Don't know about in Auckland though everything seems hard to get up there Quote Link to comment Share on other sites More sharing options...
Johannes Visser Posted December 28, 2007 Author Report Share Posted December 28, 2007 Thanks! Is it legal to take it from Lake Taupo if its available there ! LOL I don't want to get into trouble Would it stay submerged or would it float?? :roll: Quote Link to comment Share on other sites More sharing options...
Tropheus Posted December 28, 2007 Report Share Posted December 28, 2007 Doesnt pumice float? Quote Link to comment Share on other sites More sharing options...
Johannes Visser Posted December 28, 2007 Author Report Share Posted December 28, 2007 Doesnt pumice float? That's what I thought, would larger bits have enough weight to stay down! Quote Link to comment Share on other sites More sharing options...
Mrs Frog Posted December 28, 2007 Report Share Posted December 28, 2007 Yeah Pumice would float so you would have to anchor it down somehow. Quote Link to comment Share on other sites More sharing options...
Slightly Blue Dalmation Posted December 28, 2007 Report Share Posted December 28, 2007 wouldnt it become water logged and sink? Quote Link to comment Share on other sites More sharing options...
Slightly Blue Dalmation Posted December 28, 2007 Report Share Posted December 28, 2007 along the lines of driftwood Quote Link to comment Share on other sites More sharing options...
ryanjury Posted December 28, 2007 Report Share Posted December 28, 2007 It does become waterlogged and sink I have seen it used in african tanks And I guess its not illegal if you don't get caught.. Quote Link to comment Share on other sites More sharing options...
Mrs Frog Posted December 28, 2007 Report Share Posted December 28, 2007 Ooh I might see if I can get hold of some then if it sinks because it looks really neat. Quote Link to comment Share on other sites More sharing options...
malawiman Posted December 28, 2007 Report Share Posted December 28, 2007 Might be pumice, is that a local tank? Used to get limestone from the beach in Cape Town which look like that. Might be some around here somewhere. The pumice will float and you have to weigh it down and silicon together. Might have a few bits here if you want some? Will have a look tomorrow. Good to use in sump to. Quote Link to comment Share on other sites More sharing options...
ryanjury Posted December 28, 2007 Report Share Posted December 28, 2007 Actually could be some sort of rock looks kinda smooth.. Pumice will sink without weights once it gets waterlogged ive seen it before.. Apparently the whole bottom of lake taupo is covered in pumice that has sunk that is where they stuff ive seen came from someone who was diving down there.. Quote Link to comment Share on other sites More sharing options...
Johannes Visser Posted December 28, 2007 Author Report Share Posted December 28, 2007 Might be pumice, is that a local tank? Used to get limestone from the beach in Cape Town which look like that. Might be some around here somewhere. The pumice will float and you have to weigh it down and silicon together. Might have a few bits here if you want some? Will have a look tomorrow. Good to use in sump to. Not a local tank just a pic I found and liked it! Thought i I would see if I could find some stone like that! Have hear that the beach in Ch- church has Lime Stone, not sure which one ! :-? Quote Link to comment Share on other sites More sharing options...
Tropheus Posted December 28, 2007 Report Share Posted December 28, 2007 Had a guy get me heaps. So i did the silicone thing and guess what!! It just floated. You might have to get something stronger than silicone. Quote Link to comment Share on other sites More sharing options...
malawiman Posted December 28, 2007 Report Share Posted December 28, 2007 It looks awesome and are good PH buffer. You get some bits with heaps of holes and cracks for the fry to hide in and the survival rate in community tank is good. If you find some or place where to get it let me know, will look good in show tank. Quote Link to comment Share on other sites More sharing options...
ryanjury Posted December 28, 2007 Report Share Posted December 28, 2007 I have seen huge ass bits of it that had been waterlogged and sunk, maybe it just takes a while to get enough water in it to sink? A bit like drift wood weigh it down and stick it outside somewhere for a while to sink.. Should ask Jewelz how she did it as it was in her tank I saw it.. Was rally weird because the pumice was quite light to move around in the tank but as soon as you took it out of the tank it was bloody heavy and you had to struggle not to drop it. Quote Link to comment Share on other sites More sharing options...
jewelz Posted December 31, 2007 Report Share Posted December 31, 2007 Hi guys. I bin using pumice for years in my tanks. Dont bother trying to weight them down unless they're really small pieces cause they will come up fast and smash your lids. The secret is to boil it, then plunge it into icy cold water. Will have to weight it down with a brick or something. I had quite sizable pieces in my 6 ft African tank and it literally took hours of boiling before I could get them to sink :roll: I've found its best to carve out caves in them once they've been submerged for a bit. Lake Taupo after a storm has its shores in areas littered with the stuff. I dragged my huge bits up from about 20 metres one day when diving. Quote Link to comment Share on other sites More sharing options...
jewelz Posted December 31, 2007 Report Share Posted December 31, 2007 oops...what I meant by weighing it down with a brick was you have to keep the pumice submerged whilst boiling it and then keep it submerged while quickly cooling it down. Pumice is inert too so it wont alter your ph. It is also a great place for good bacteria to thrive in. Quote Link to comment Share on other sites More sharing options...
malawiman Posted December 31, 2007 Report Share Posted December 31, 2007 Cheers for that Jewelz. Never to old to learn something new. Will give it a go. Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted December 31, 2007 Report Share Posted December 31, 2007 I would have thought pumice would look a lot more like a sponge (it floats because of the air trapped inside it). It looks like water warn limestone to me and it will make your water hard if it is acid. It is virtually insoluble except in acid. Quote Link to comment Share on other sites More sharing options...
nemines Posted January 1, 2008 Report Share Posted January 1, 2008 looks like tufa rock to me Quote Link to comment Share on other sites More sharing options...
jeash007 Posted January 1, 2008 Report Share Posted January 1, 2008 i think it's pumice, also easy to drill holes in and make caves etc. also if it falls it shouldn't crack the bottom of your tank Quote Link to comment Share on other sites More sharing options...
jewelz Posted January 1, 2008 Report Share Posted January 1, 2008 It certainly looks like pumice that I've come across, however there are other white volcanic rocks around too. Ive never had the slightest ph changes using pumice. Its basically vescular glass but I started using it on the off chance that it would increase my ph levels then gave up and decided that since Id gone to so much trouble Id keep using it anyway. Its got more pros than cons in my opinion, the biggest con is that it will shred your hands if you are handling it for any length of time. Big pieces look like rocks under water and it looks good in African tanks especially if you can find the real white ones. I've gone for the smooth pieces rather than the type pictured cause cleaning them is a nightmare when youve got nooks and crannies. Quote Link to comment Share on other sites More sharing options...
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