A fish shouldn't be confined to an aquarium.
Please study about fish in the wild and what they need. They swim over large, large areas.
I wish the day here is soon when humans will stop breeding animals.
animals have the right to live in freedom (an excellent article by Will
We should never support the breeding-system.
It is however a very good deed to save an animal from being killed at an 'animal shelter'.
also to put an effort if you save an animal, to give him/her vegan