My beautiful aquarium management
last week i added more two white sharks, they got afraid 1st day but with passage of time they got familiar with others. it is about 3.5'/2.5'/1.5' takes about 45 gallons or 175 litter water.
I do like the decor of the tank, has an Asian/Feng Shui kind of feeling. Unfortunately the sharks will get bigger as the tank, and even just 2 goldfish will be a challenge. Fish don't adapt to the size of the tank, they either die early or grow out of it.
This tank would work if you re home all of of those fish, and get similar looking fish that stay smaller, like rosy barbs for the goldfish and a red tailed or rainbow shark for the iridescent sharks.
Have a look at this video the Ohio Fish Rescue rescues 2 iridescent sharks albino and normal just like you have.
This is a 350 gallon tank (1323 liters) it is 36" deep (91 cm) and you can see the fish are almost as tall as the tank is deep.
Mind you they will get much bigger as this.
Fast forward to 7 minutes. Watch till the 9 minute mark to see what it takes to move these fish. They are strong enough to break a tank.