My life is simple, and features two characters. There is of course Me, and also Mark.
Firstly, let's talk about me, because I like that!
Brian

My full name is 'Brian the Goldfish, the Third'. I have a little sign in the stones at the bottom of the tank -- it tells me who I am. I'm not entirely sure what the third means but I guess I come from a long distinguished line of swimmers.
I am of course a Goldfish, which I believe originally came from carp fish in China a long time ago. I think I am about six years old, but one loses track.
Contrary to popular myth, I do have a memory span of about three-months, but if something is always around me I will continue to remember it. Ask me what was on TV a few months ago and I have no idea. I have good eyesight and I can hear things too, through the water. I can distinguish shapes, objects, and even different people peering at me. Again, if I've not seen you for three months you are nothing to me other than a brand new curiosity. I am a golden-orange colour, and I am about the length of an egg.
I live in a large freshwater tank, which has a lovely view from one side out the window to the garden. The other side allows me to see what is going on indoors. I can also see the other tank in the corner of the room. I think it's called a TV; all I know is it is very busy, makes a lot of noise, and many small people and animals live inside it.
There's a big stone castle in the corner of my tank, which I love hiding in, and catching up on my thinking and sleeping. The bottom of the tank is covered in little white pebbles. There is a big stone that blows bubbles; it is my absolute favourite thing. I can spend hours sitting in the stream of bubbles. Apparently it's a tank purifier but to me it will always be my bubble machine.
Visitors
I live alone in my tank, but I have had occasional visitors swim with me.
Once I had a horrible plastic diver figurine, gifted by someone (I forget who). I really objected to him being there so I kept knocking him over. He's gone now.
I sometimes had little tiny blobs visit me. I heard they are called sea-horses. I've not seen them in a while, and I've been told they will not be back. I'm over it now, but it was tough to hear. I really did enjoy eating them!
Mark
He's my owner -- well that's what he says. I call him my enabler. He feeds me, freshens my water, and chats to me all the time.
Since I can't ask questions, I don't know much else about him. He's a human, not a fish, and people do come and visit him often. Maybe because he doesn't eat them.
Mark just seems to get me. He is able to look at me and make up the words for the story playing in my head. He clearly has some kind of super-power which I can't explain.
So that's Me and him. I hope to publish little stories on here; Mark will be my narrator and typist, as I've no hands or fingers and can't use a keyboard.
And before you ask, no I can't speak either. The hole at the front allows me to blow bubbles or inhale food. The hole at the back stops me exploding!
Enjoy