three-fingers
Fish Connoisseur
How are you supposed to know if they are unhappy though? Other than being unhealthy or not eating (both of which are likely future scenarios in their current surroundings), how can you tell when you keep them in a bowl?
In normal circumstances, in a large tank, a danio that doesn't swim all over the tank, but rather either stays in a corner (similar or larger in size to your bowl) or hovers anywhere in the water not moving would immediately be considered by most people to be unhappy and/or unhealthy.
This is because it is an danios nature to be very active fish, something they cannot do in your bowl...
Anyone on here or other forums who has owned danios will confirm this, as will the vast majority of books and websites...
I can think of tonnes of fish that are better suited to your bowl, but none other than a betta that could live happily in it. Why don't you just buy a mini heaterstat though? Or even use some sort of reptile heat lamp to heat it, and regulate temperature using a thermometer? (possible cheaper option than heaterstat, but obviously not as good).
In normal circumstances, in a large tank, a danio that doesn't swim all over the tank, but rather either stays in a corner (similar or larger in size to your bowl) or hovers anywhere in the water not moving would immediately be considered by most people to be unhappy and/or unhealthy.
This is because it is an danios nature to be very active fish, something they cannot do in your bowl...
Anyone on here or other forums who has owned danios will confirm this, as will the vast majority of books and websites...
I can think of tonnes of fish that are better suited to your bowl, but none other than a betta that could live happily in it. Why don't you just buy a mini heaterstat though? Or even use some sort of reptile heat lamp to heat it, and regulate temperature using a thermometer? (possible cheaper option than heaterstat, but obviously not as good).