To start off the new DIY board, I thought I would share some pics of last nights adventure making my own rock for my tank. I used Portland I white cement (paying a slight penalty here because the II/III cement is supposed to cure faster), oyster shell from the feed store, shells, sand and rubble all collected at my local beach. I mixed a little over 1 cup cement to 5 cups oyster shell with 1 cup water in the first batch. In the 2nd batch I mixed another cup of water (I think this was too much.). I threw in a handful of sand in each mix and some shells. I also put some shells in the middle of a couple rocks to make them lighter and more porous. I think the pics will explain the rest: [sub]These last two were of critters in that were in the sand I got from the beach! Some of these bugs were the size of jelly beans and they were jumping all over the garage!![/sub] WHen I was done, I covered the plastic bins with damp towels to retain the heat while they cure. This is supposed to keep them from drying out too fast and keep them strong. So I consider this first batch the trial batch. Even with what I read on the Net, unless you have someone with you that has done it a lot, you are really on your own to figure it out! In a couple days I will dig them out and post pics here. Then we can figure out how to refine this!! [smiley=thumbs_up.gif] What do you think?