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Originally Posted by Buk_A_neer
Try adding one part sand to the mix and see if that helps to bind it up for you ... it should have the consistency of cottage cheese ... make a mold in a container of sand ( I use the styrofoam boxes that LFS has their fish shipped in filled halfway with sand ) by spraying it with water to form the shape you want ... pour in the mix and then cover with more sand and leave for at least 2 days ... then soak in fresh water till PH drops to 7 or 8 ( change water as often as possible )... HTH
Cheers
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Just took out the rocks I tried yesterday and they worked perfect. SO i guess I didn't need to add sand. They are very porise and the water runs right through them. They are extremely strong too, I droped one and it didn't even break! and it had a cave in it. So today I tried some more and I will see how they turn out tomorrow. I'll take some pic and post them here too.