I am a high school science teacher and I am considering getting an octopus for my room. I have two saltwater tanks at my home, one reef and one aggressive. I also have a 200 gallon freshwater tank in my classroom. I think an octopus is a wonderful way to inspire kids to learn about marine environments (I am in Arizona and some of my students have never seen the ocean). I have good substrate and fairly smooth live rock. I also have a Magnum 350 bio-pro filter system on a 55 gallon tank. I am curious if I should include some kind of "toys" to keep my future octopus entertained. I want to create the most stimulating environment possible. I know that these are extremely intelligent creatures, so I am looking for advice. Thanks to all.