I think it looks adorable, but I wonder if it is spacious enough for the fish. Especially considering they live, breathe, eat and poop in the same little space.

I have a few large vases from Target (around $20-$30 each) that I've turned into fish bowls. I purchased live plants from the pet store, filled the bottom of the vases with rocks, and I cease to have someone comment on how beautiful it is when they walk in. I've even had a few friends take immediate trips to Target and the pet store to do the same thing. They look beautiful and take up no time at all to maintain, aside from simply feeding them twice a day and cleaning the bowl once a week or so. Plus they're now my little buddies who I wouldn't have if I needed the expansive/time consuming aquarium requirements!

ONE IMPORTANT NOTE: Not all fish can survive in a bowl without an air filter!!!! I have 1 vase with a beautiful purple male Beta fish -- male Betas have to live by themselves -- and another vase with a female beta and a specific goldfish...but before you go this route and find yourself with a suffocated fish floating at the top of the bowl within 24 hours, ask the person at the pet store which breeds can handle a bowl with standing water. Betas are really the best way to go, not only because they can live in this environment and only cost a couple dollars, but also because of the beautiful vibrant colors that they have. One of my favorite things that I've done!!

I love the way this looks, more art than pet, and I love things in 3's. My concern would be that putting them in a windowsill it might get too hot if there is direct summer sun beating down on them. Might that be a problem?

This is adorable. But I have the same question as kclulu...will I boil my fish on the windowsill?

To answer the above questions...I would definitely not recommend putting these on a window sill!!!! I did this idea a couple of years ago, and my fish have so much personality that my "decor" idea has transcended well past being a decor to now being my "pets" that show themselves off. But fish are obviously living things that survive in specific environments, and their water should always be at room temperature. Just like you only put certain plants in certain light situations, fish are exactly the same. So if you have them somewhere in your home/apartment (e.g., on a mantle, a table, or on a thick wall shelf like what you would prop pictures safely on) it looks amazing. But if they sit in the direct sun obviously the temp of their water is going to rise and they will cook themselves to supper.

I can't express enough how easy and impressive this idea is, but just be cautious of getting the right fish, feeding them, and keeping them out of direct sunlight, and you'll have something that literally lasts years and leads to a topic of discussion with anyone that steps foot in your house.

ugh... this upsets me a little bit because there aren't very many fish who can be healthy living in such a small amount of water, and just because you're using a small vase doesn't mean it's going to be low-maintenance. What about algae? And the waste produced by the fish? In such a small container, the fish could easily die due to high ammonia levels.
I'm not saying I don't like the idea.. because I really like it!
But you need to be educated before you take on any pet, even one as small as a fish

The fishes in the vases look cute and all, but fish really can't be kept in such a small space, no matter how cute or artsy it looks.

Yeah, I agree. It looks cute but it is not good for fish. Tiny area, no filtration, no temperature control... consider using something that isn't going to be boiled alive by the sun or frozen by the cold.

I think the fish would look better in shot glasses.

I'm glad I'm not the only one that thinks this is a bad idea, for all the reasons listed above. Just because Betta Fish are sold in tiny containers doesn't mean they should stay in one. They are much happier in a normal sized tank and show much more personality and beauty when they can actually swim around.

Why not just use water plants? I have some live plants in my aquarium that would look pretty in a vase like that.

And I guarantee, housing a fish in something like that is much more high-maintenance than a properly set up fish tank.

something like this really shouldnt be recommended.
even if you do get fish that can live in room temp standing tap water happily (which your standard goldfish quite often can - my last one lived 8 years!) there isn't enough room in a vase for a fish. if you want pretty vases, put flowers in them. if you want a pretty fish tank, buy a glass fish bowl big enough for the poor fish to swim in!!
also - such a small amount of water in a glass vase on a windowsill is sure to result in boiled fishies.

OMG, fish have feelings! President Obama shoudl be using humane fly traps and releasing them into the wild!

It's just a suggestion, dudes.

OMG, I love anon comments!

I have no problem killing flies if they're annoying me. But buying a bunch of fish to make your windowsill look pretty, only to have them suffer for a week or so swimming in their waste and overheating is not my idea of a good suggestion, dude.

"I cease to have someone comment "

I do not think this word means what you think that it means.