
This is beautiful, but adequate only for a temporary enclosure, and shouldn’t be that brightly lit. Fish don’t have eyelids, bright lights with no escape are bad for them. To permanently house all those goldfish, you’d need a tank larger than that, with the top OPEN for proper oxygenation (even with a bubbler this is a serious suffocation risk if not constantly observed), longer than it is tall for swimming room, with lots of hiding places and things to do. Goldfish are smart.