Hi all need your advice. I have a pistol shrimp in my 4.5gal nano tank constantly shifting the sand and mess up all my rock works. Make my rockwork looks as if they are cover in snow which I am not very impressed. Will you guys recommend me take out the shrimp? Or will it do any good keeping him? Will anything bad happen to the sand bed if no one is stirring it around? Or any other creatures can do the same thing but not messing it up to such a degree. Thanks in advance guys.