They exclusively focus on freshwater planted tanks. They do carry a large selection of freshwater invertebrates like shrimp, crayfish, and crabs, but I don't think you'll find any saltwater invertebrates like octopus in this shop.
I have not seen them carry it, you should contact them to see if they can get a special order in. They specialize in freshwater aquatics though. Octopus are normally a salt water type of creature. Doesnt hurt to see what they can do for you.
They have more exotic animals, but i haven't seen octopus. They might be able to make a special order.
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