Just in time for Valentine's Day - here's a heart for your fish tank!

This heart is fun for your fish to explore and makes your tank more festive.  

You will need to print two things: one heart, and one base.  The hole on the base accepts the tab on the heart.  

Once assembled, place in the water and hide the base under the gravel. 

Originally designed for a fish tank but much more versatile - consider other applications like shelves and desktops.

PS: There's a shamrock version for St. Patrick's Day here.