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- May 7, 2019
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Imagine I have a spearer-variety of mantis shrimp that's about 4 inches. I've read that the sand bed should be about 1.5 times the length, so it would be 6 inches deep. For a shrimp this size, I've also read ten gallons is sufficient. But would it be the overall space should be 10 gallons (including the deep sandbed), or just there should be at least 10 gallons of water in the overall tank.