Caught a ground beetle in Southern California.

[Reyes]

Hello, I would like to know what species this group beetle is. As well as it’s diet. https://ibb.co/qk442Lz

 

[The Mantis Menagerie]

Hello, I would like to know what species this group beetle is. As well as it’s diet. https://ibb.co/qk442Lz

INaturalist the All-Knowing says it is Laemostenus complanatus. I would offer it a pre-killed roach and maybe a snail. It reminds me a bit of a Scaphinotus species with its enlongated body, and those are snail-eaters. 

 

[Reyes]

So I put it in my bioactive tank. It has snails, worms, and other insects in there. Is it alright?