pics of my DIY rock for the Monster! Big Pics warning
 

So here is some shots of the first attempt. In the 2nd pic you can see where this piece will sit in the tank. The purpose of making them against the glass was to save some room in the tank and have more open sandy areas. The tank is going in a wall to viewing from the side will only be had in the tank room. The sculptures will also sit about 3-4" higher then they are in the pics as they will be sitting on something to support them at the top of the sandbed.
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Here is the 2nd sculpture that is going on the otherside of the tank. This piece is a little more porus as I used a little more oyster shells in the mix than I did on the first one. Both are in the cleaned bathtub for the next month and a half or so for curing and I am changing the water every 2 days.

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This pic gives you a great idea of how porus you can make the rock.
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Wow cool. Very realistic. You can make a fortune selling these. Culture them into live rock and sell them for $6/lb. :)

Hmmm. Well along with my frag farm maybe I will have a rock farm too :lol:
each piece weighs aprox 35lb.
Thanks for the complements. They turned out better than I figured they would.

looking good....how much fake rock vs live rock are you going for? what kinds of lr?

Um, OK, now I'm concerned about how much weight you're going to have in that tank and can it hold all that weight?

Work of art in progress, Jon!

The weight should be fine, Sam. Jon's pieces are quite flat, and when you think about it, the natural LR that we buy sits on a very few points, and have much higher "point loads", which we load up even more by piling more pieces on top.
I've also seen 180g tanks completely full of LR, curing.

Mitch

looks like you didn't have problems getting the bottles out. nice one!

Yea there's a funny story behind that. the first piece I made I used glass canning jars for the caves. I thought I could just slide them out :lol: yea right! I hade to smash the glass and then get it out.
On the second piece I used empty seachem calcium plastic containers and after about 8 hours(so the cement is not completley solid yet)you can just slide them out.

Sam. With the 3/4" bottom I don't have any worries about smashing the glass. Thick stuff!

Mictch. Thanks!

Well Sean I am adding these two pieces on each end of the tank and then I figure I will not have to add much more then what's currently in the 90g.
I may go buy some pieces of TUFA just incase I need some more rock but I do not plan on purchasing any more"live rock". I think the 150lbs that I currently have in my 90g will be enough to seed any other rock I add in the tank. I like to think my initial $700 investment in rock from Wai's 2 years ago is enough for me. Unless I get a 1000000g tank :roll: i don't think anymore is in my future.

DIY LIVE ROCK
 

HOw long do i have to keep the rock in the tub with the oyster shells for. And it it ok to use lots of macroni in the rock for the pourous along with

TUFA rock: My wife has a recipe for tufarock and was wandering if its the same as making the Rock like yours is the curing tiem the same..