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So I'm going to be setting up a 75 gallon tank pretty soon, and am planning on using dirt. I've been saving up egg shells, drying them, crushing them, and then throwing them in a coffee grinder. It is pretty much egg shell sand. I wouldn't quite call it powder. I was thinking about mixing it in with the topsoil that is going to be in the tank. Right now I have about 3 dozen egg shells, which equates to half of a small ziplock sandwich bag full.
Has anyone ever tried this? I'd imagine it would be great for the plants. I guess the shells are about 93% calcium carbonate, and if I remember correctly, you typically add a bunch of that when you do mineralized topsoil.
Also, what is the benefit to using mineralized topsoil, instead of just regular old topsoil, with all the sticks and rocks taken out? The plants use it better/quicker somehow? I mineralized some topsoil a while back, and my wife asked me why I was boiling dirt. I told her that I was mineralizing it. "What for?" "So the plants will grow better" "Why not just use dirt?" "um.......... cus...?"
Has anyone ever tried this? I'd imagine it would be great for the plants. I guess the shells are about 93% calcium carbonate, and if I remember correctly, you typically add a bunch of that when you do mineralized topsoil.
Also, what is the benefit to using mineralized topsoil, instead of just regular old topsoil, with all the sticks and rocks taken out? The plants use it better/quicker somehow? I mineralized some topsoil a while back, and my wife asked me why I was boiling dirt. I told her that I was mineralizing it. "What for?" "So the plants will grow better" "Why not just use dirt?" "um.......... cus...?"