Jason, who cleans Melissa’s multiple tanks every fortnight, spent 16 hours molding the new tank’s see-through acrylic panes and building its wooden base before fitting it in December.

Adorable viral footage shows three-year-old Jasper sitting upright on a cushion beneath the purpose-built acrylic case with only his head poking through a cube-shaped hatch.

The mesmerized kitty looks up and around the tank at the array of colorful fish and he even paws at the hatch to try and touch the tropical pets—just like a child at an aquarium.

Mom-of-four Melissa shared her video at the end of January on Facebook, and since then it’s been widely shared racking up more than 10 million views.

She insists of the 125-gallon tank that “it’s definitely been worth the money” to keep her “easily bored” feline occupied.

Melissa, from Cincinnati in Ohio, said, “It’s great to see him so happy because you’ve got to stimulate their brains.

Of the steep cost she said, “You spend that much on a TV and this is like a TV for cats. As soon as we feed the fish, he comes running. He’s living the dream.”

Describing Jasper’s first experience with the tank, she said, “His eyes just got huge when he looked up and saw the parrotfish and they were staring back at him. That’s what made him want to go inside it more.”

Now the videos of Jasper have gone internet-famous, here’s what commenters have been saying:

Lizzie Beth: “This is the most amazing aquarium modification, EVER!!!!”

Vicki Pedeferri: “Great idea! Keep your feline entertained all day.”