They don't have emotions like we have emotions. They react to their environment on very basic levels. They eat, sleep, breed & die. A fish's 'emotions' just reflect its state of being. When they're sick or scared, you can see it. They're poorly colored, clamped fins. Mammals are much more emotive than most other forms of life and we tend to read our emotions into other things.
Not to say they don't have personality but a lot of their behavior just isn't based on the same impulses that we live on. If we provide them with clean water and food then they don't need much else because they are a slow moving fish. They don't like current at all. I had a very small amount of water movement in my little tank here and it made the fish miserable...it was too much for it. It just is a fish that comes from bodies of water that don't move.
There's nothing wrong with putting them in a 10g tank...I'm just saying that they can be comfortably maintained in a small tank if you're willing to do the work.
Not to say they don't have personality but a lot of their behavior just isn't based on the same impulses that we live on. If we provide them with clean water and food then they don't need much else because they are a slow moving fish. They don't like current at all. I had a very small amount of water movement in my little tank here and it made the fish miserable...it was too much for it. It just is a fish that comes from bodies of water that don't move.
There's nothing wrong with putting them in a 10g tank...I'm just saying that they can be comfortably maintained in a small tank if you're willing to do the work.