
First, get one of these mini toys.

Got it. Only HK$10.

Then, seal off the bottom part of the tank, before fill it with water.

Second, get some fish babies (HK$5 X 2).

(Finally, put the whole thing together.) One fish hides behind that cushion, the other one hides under the bed.

They are in my hand now. Hahahahahahahahahahaaaa.

Robot Soldiers/Resurrection/Rescue - "Castle in the Sky" soundtrack
by Chellon88
When they get bigger, I'll move them to my regular fish tank. In the mean time, I'll take good care of them :-)

Reference: "World's Smallest Aquarium"
*原想用 MIRACLE - 張國榮+麥潔文 , 沒有合適版本