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#1
05-26-2009, 12:36 PM
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But then we have read about some of the DIY rock, where the recipe was off a bit and it wiped out peeps tanks....
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260g mixed reef, 105g sump, water blaster 7000 return, Bubble King SM 300 skimmer, Aqua Controller Jr, 4 radions, 3 Tunze 6055s,1 tunze 6065, 2 Vortech MP40s, Vortech MP20, Tunze ATO, GHL SA2 doser, 2 TLF reactors (1 carbon, 1 rowa). http://www.canreef.com/vbulletin/showthread.php?t=50034 . Tank Video here http://www.vimeo.com/2304609 and here http://www.vimeo.com/16591694 
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#2
05-26-2009, 03:34 PM
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I have done this and IMO if you have the time to let the concrete cure and leach its high PH in RO water, its much better than PVC structures or zip ties. It ends up looking the most natural. Once the concrete grows over with coraline and whatnot, the rocks look like one big piece.
I think I used portland cement. Whatever it was, nothing fancy, cheap and never had problems. I had that tank up 3 years.
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#3
05-26-2009, 04:59 PM
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How long did you let it cure for Justin?
IMO the time for me to figure this out is now, when I have a stockpile of rock in a rubbermaid. It's wet but not otherwise hugely live as it's been sitting for a while. So I can fill my tank and let it cure in place before cycling but I wonder if I'd have to dump a bottle of bacteria in to reseed the rock and let it re-cycle before I transfer any livestock. I'll try looking for the Thorite though too in the meantime.
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-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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#6
05-29-2009, 03:27 PM
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If the pieces are small enough I've heard of people curing the cement by throwing it in the toilet tank, several easy water changes a day.
Wouldn't work for you as I'm sure your pieces would be much to large but for people will small tanks it might work out alright.
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Robb
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#7
07-07-2009, 05:34 PM
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I have located a local source of Thorite! I just spent the last 2 hours on the phone talking to all sorts of people who think I'm nuts for wanting a concrete product to use in an aquarium (yeah, tell me something I don't know!
 ) but I FINALLY found a stash here in town!Some background though. "Thorite" as a brand name no longer exists (which explains part of the difficulty of tracking it down). BASF, the manufacturer, has merged product lines and the new product name is "EMACO R400 Architectural". There is another product people have been using, mentioned over at reefcentral, and that is "EMACO GP" ("general purpose"). Either should be fine to use. From what I understand, the difference between R400 and GP is colour - architectural is blended at a lighter colour to better match the colour of precast concrete products, since this product's "intended purpose" is as a patching mortar (concrete repair). There are two local suppliers in Calgary, 1) Unicon Concrete Structures and 2) Brock White (formerly Manstar) I just spoke to the folks at Brock White, they have in their warehouse some 46 bags of the R400. It is technically "past shelf life" which means it is not warranted for structural use anymore but it should be just fine for holding pieces of liverock together. Because of this though they have a sale price on the bags at $31.86. Here is the contact info: Brock White 2703 61st Av SE (403)287-5889 They close up shop at 4:30pm so go on a lunch break or something ..
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-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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