The treasure chest has an airline to connect to an air pump line but it needs an air pump that can be adjusted down to very few eminating bubbles or the treasure chest lid will remain fully open.
And when be set up, a vivid treasure seeking will appear in your fish tank. It would be very nice and add more fun for your little baby fish.
Notes:
1. The treasure chest will be lighter than water when poured with oxygen, so you need to use 1 or 2 suction cup to fix it in an aquarium without gravel.
For a tank with sand or gravel, just put some sand or gravel in or around the chest and it's done.
Then a vivid and interesting scene will be created in your tank.
2. Please note that there are some glitter flakes in the treasure chest which are supposed to make the box more vivid.
But the glitter flakes are stuck into the chest, never mind it will be unsafe to your fish. Just swill the product before putting it into your tank.
3. There is a plastic stuck back the box, please remove it first before using, so the box can open can close easily.
What makes the product worth to buy is not its size or weight but its creative design, run by an air pump to imimate a diver who is searching for treasure.
Please mind the measurement in the fifth image. The item may be not as large as you think.
How to make it work:
1. Connect the pump interface to an air pump or an adjustable air valve.
2. Put the chest in your aquarium and set the position.
3. Adjust the air pressure to make the chest diver active according to your needs.
Package includes:
1* treasure diver
The Tagline of Bestgoo Tank Ornament is 'Entertain Your Little Ones Then to Please You...We Know It's Really for You! '