Finalizing tank

[kth]

I finally have my dual nano system setup with one tank to house a mantis shrimp, hopefully a G. Smithii.

I have a two pieces of Cerameco VidaRock one is like a cave but also has a smallish cavity in it. I also have two piles of rock rubble. Should I add anything else? Dr. Roy's list says Smithii live in cavities what is a good size?

https://lh5.googleusercontent.com/4aq3DygDpRwctw5l_BM3i0f4rND9dYuG0N9oZHhqi_c=w1280-no

https://lh6.googleusercontent.com/smTnpTbk5A2gnX2-fS3C94Iu7hH-MI9aLZzMTZwdG-M=w1280-no

[young doz]

I fear you may rarely see that species with that much live rock!

Great stomatopod to have though