My 18 x 18 x 18 Cube Build

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Heres my build for my 4 new baby Dumpies to arrive on Saturday. I started with a 18 x 18 x18 Zoo Labs Cube. I have stolen a few ideas from many of you here including a lot from Josh.

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Heres my backing structure made of Styrofoam, I placed it 4 inches from the back glass to provide room for my Pump and filter. I cut a notch in the bottom to allow for water flow.

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Heres my first few layers to include what I am hoping will be a cave area.

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As I construct I have planned for a few recessed areas and platforms for my babies to chill out.

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Im using white bathroom caulk to hold my Styrofoam together.

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Heres a side and top view

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I put a foundation layer of waterproof beige bathroom tile grout down, then you'll see my Styrofoam cup plant placements

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I then used Good Stuff Foaming material to cover my cups and then grouted

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Heres where the issues came in, I guess I didn't wait long enough for the foam to dry before I grouted, the foam contracted and all of the grout flaked off of the foam I placed on my cupsAlso note my cloudy water on my first water test. You will see the arrows which represent my water flow which worked perfectly, all my plants are getting wet at one time.