Ornamental fish photography at home

So today on thursday i went to my friend's house to play because i was sick this morning so i'm feeling a little better now so i went to a friend's house to see the scenery here and when i entered his living room see the view

it looks like a big aquarium and lots of fishes in it which makes me really very interested to see it ,very cute he really likes to keep it too But I am at home keeping it in a pond not an aquarium

I also tried to take some photos of the fish but it was quite difficult because the fish was running where it liked so it was really a hassle but in the end I was able to manage to take some photos of the fishes..