Different blog in the store

Hi to all.

I've this web site and it's made in Opencart v 1.5.6, i set up my default store and now i'm tryng to configure the second one.

The two stores are different, sme products but different prices, look and content, but i see that the blog share the same content in both pages, is there any way to create a post just for a store?

Thnx