Fish Tank

-"Woah, what are these things? Hello! They're red and green. Orange and Yellow" -"They're called fish don't you know. They swim above, while we are below." -"Fish, I hear you say, what are the for?" -"They're the reason we're here, and sit on the floor." -"We're here for them? Then who's here for us?" -"No-one I'm afraid, if you're metal you'll rust!" -"But then what's the point? I'm so new I don't know." -"We add the ambience, now are you friend or are you foe?" -"Oh I'm friendly for sure, don't let my stature decieve, these guns are not real, if that's what you believe." -"I thought it prudent to ask, being a castle and all, but it was part of my design, to have a hole in my wall."