You can also put them in a small tupperware container with some holes drilled in it and set it in your toilet tank. Then every time the toilet is flushed, the water is changed out. Also works when making your own live rock.
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Is there any kind of cement that cures black?Never did black sand but if i can get some from a friend of mine i will test it out.
Is there any kind of cement that cures black?
Just something different is what I like to see lolI am not sure on black cement, I did add some sand to the top of each one right after i poured them so the surface would be sanded and the frags seem to hold on better and encrust faster on the disc. When you first mix the sand and cement the cement coats the sand so I am not sure the disc would come out black, at best I would think it would be a salt and pepper look.
You can also put them in a small tupperware container with some holes drilled in it and set it in your toilet tank. Then every time the toilet is flushed, the water is changed out. Also works when making your own live rock.
Im not so sure i would do this. You dont want sand getting into yoir plumbing, right??