I don't have a lot of advice. is the large light area a sliding door or just a window?

but things that I would do first are

1. Turn your dining table the other way still right up against the half wall. You would be able to slide the chairs under it which would visually take up less room but also make it more comfortable to sit at.
2. I would move the cabinet you have the fish tank on centered under your 2 pictures by the temporary refrigerator. And don't angle the fish tank. would you be able to put both fish tanks on it there? if you can i would move the table the one is on the the side of the futon where the larger cabinet was move from to use just as an end table. leave that space it came from open so you can walk around either side of the couch.

Thank you! I was thinking about moving that piece there! But it would make the walk wall a little cramped so I need to move the couches which is what I am struggling with now!

Can we assume there is a bathroom and bedroom somewhere else? (i.e. you aren't sleeping on the futon). People will chime in but a scale drawing would be very helpful.

What is your goal in rearranging? (do you need more seating, want it to look more cohesive, comfort, etc?)

Just on first glance, you have it set up about the best you can given your constraints. You could replace the futon with chairs and get a larger ottoman with a tray for all to use. If by "air chairs" you mean inflatable ones I would stick with the futon. A set of nice cozy chairs would work.

The couch and the futon do not "mesh" at all in terms of style or color but they do serve the purpose of seating. If you keep the futon, perhaps buy a new cover in a color that coordinates better with the natural tones in the room (rust, beige, etc).

Yes so my bedroom and bathroom are in another room! Id just like the room to look more cohesive and less cramped. But I also want it to be comfortable! I feel like everything is on a wall and it feels awkward. What is a scale drawing? Like measuring the room on paper?

Here are a couple of chair options that could work from Ikea...

Rattan might not last forever but use a cushion and the price is right. It will coordinate with the brown tones but have a lighter appearance that is not too modern.

How many people use the space? And can you take a picture from behind the right side of the dining table facing the wall where the cabinet with the larger aquarium is? Trying to see how much space you have between the back of the sofa and the area where your dining table is.

It’s just me and my boyfriend, but I have to have students in occasionally to talk. Also my parents come to visit sometimes. But it’s just me and my boyfriend every day.

You need a nice plant here to hide the back of this cabinets and the cords. Or a tall round basket with a blanket trailing out of it.

Is there an another door way or opening in the living room to the right? Re-looking at the pics, I see an edge that looks like a opening. Above pic, standing behind the sofa, if you turn to the right what is on that wall?

I was standing in the passage way to my kitchen to the left of me a floor to ceiling window then to the right is the half wall where the dining table is. The only other part is an entry way that leads from my front door into the space in the above pictures.

Yes I can

The bulk of the sofa seems like it is a barrier to the rest of the room. I would (after moving the fish tank to the wall against which the fridges are stacked) place the couch against the wall where the futon is located. And, then place the futon with its back towards the kitchen. OR, better yet, replace it with two light weight/profile chairs like the IKEA ones ($99-$199) above for additional seating. Then, the dining chairs can also be pulled over for additional seating when you have more than a few of you in the room.

Move the fish tank to the half wall or the full wall?

A popup coffee table that you could dine or work on would help a lot. If the futon is yours, sell it - they are popular items on campus and you should be able to move it easily. Turn the green sofa to face the window and push the table and chairs up behind it if you keep them. Move the larger fish tank where the fouton is now. Then take the smaller tank to the bedroom. Is your black coffee table a storage space? You might push it up against the air conditioner for extra seating if you're able to replace it and the dining chairs and table with the popup coffee table..

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I like deco's suggestion - get rid of the futon, you don't have space for it. Put the table against the back of the sofa - looks like it will fit well, or get a popup table. If you have any larger size art I would use it instead of a bunch of small art, to avoid a cluttered look.

I would place the fish tank against the full wall, facing into the room. Near the kitchen.

following

I don't think you can have the couch and futon -- it looks like nobody can have their legs in between! One couch, with two chairs in the corners of the space. They may have to be slim chairs to fit the space. Coffee table if there will be 12-18" between it and any seating; otherwise move the fish tanks to where the temporary fridges are and get an end table where you can have a skinny reading light and set down a drink.

Check out www.apartmenttherapy.com

I'd try to declutter and also invest in some larger art work, e.g. engineering prints of photos or enlarged photos.

And, yes, can you give us measurements of the space?

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I think an arrangement like this could work for you... though all of your furniture will/should be smaller scale apt size. Just make sure they work in terms of style and color. Use a tray in the middle for drinks etc and C-tables on the ends of your couch. Put your large fish tank table across from the couch.

I actually like the couch and dining table where they are for a little separation. I think switching the couch with the futon will leave you with two many legs on the kitchen side of the room. A drawing (even a rough sketch of what is where and how much space it takes up would be helpful).

The futon needs to go. And I wouldn't add more chairs. When you have occasional guests, use the dining chairs. Or maybe you have a chair in the bedroom that you can bring in. We really need measurements of the space to make decent recommendations on placement of furniture. You can see the space but it's very difficult for us work from photos. I have some ideas but don't know if they would work e.g. could the cabinet go where the couch is now, i.e. facing the wall where the futon is now.

I really like the fish tanks but you're not showing them to best advantage. They would look better together and I think the only place that works is on the cabinet (wherever that ends up in your plan). Put them straight, not angled - they look oddly tippy at an angle. Find a drawer or pretty box/basket to put the fish food etc. so the attention is on the fish, not on those not-that-attractive items. Put a wall shelf or hooks or wall-hung basket near your front door so keys etc are not cluttering the space.

The lights around the window and wall are not attractive. Sorry but a bit teenage. I'd remove them

Your green couch should go where your futon is now. Now as far as your wall art. I'll assume you want to work with what you have. Your largest pieces of art work should go on the couch wall which is now bare. Probably you need to put 2 pieces side by side, because their combined width should be about 2/3 of the width of the sofa. Maybe the ones on the refrigerator wall, or the piece that is now over the fish tank? The bottom should be hung about 6-10" above the back of the sofa.

Once you have decided where the rest of the furniture goes, come back and we'll help you with the rest of the art. Your art is hung too high. The middle of any "arrangement" should be 60" from the floor, unless it's over a piece of furniture that makes this impossible. Your arrangements are also spaced too far apart. Small walls, like those on either side of your window, usually look better without anything, and the art concentrated on larger walls.

I suggest trying a slipcover on larger sofa, if you are keeping futon. You could buy a slipcover. But you could also DIY using a fabric of your choice. And a simple painter's drop cloth can be a good option for this, too. Wash it, and it offers the look of a light colored linen. And that is the direction I would go in.. white/off-white. A fabric, painter's drop cloth. You can find at Home Depot. And you can Google DIY Dropcloth Slipcovers... with or without sewing.

And below, the no-sew shabby chic approach, which could work well.

And bring in a couple of coordinating pillows on futon, in off-white, maybe some blue in the mix.

And you could consider using an end table or small ottoman as a coffee table, to take up less space.

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Hope some of this helps. :)

Can you give us the measurements of each of the red lines, and also the size of the couch, cabinet, air conditioning unit and table?

Helping friend and daughters shop for apartments one thing I found most of the time: People in apartments have TOO MUCH STUFF FOR THEIR SPACE. I would do a serious edit of your furniture/things and get it down to items you use often. Then the bet arrangement might just make itself known.