... - I highly suggest just using this black expanding foam. I have found it to be way easier than doing the concrete route. Here is a link: Aquarium Expanding Foam: ... This is a super awesome DIY aquarium backg
by Glamrs
by Activity and fun
by Arjens DIYkrafty
by Simple Craft Idea
by JillianTubeHD
by ♥ Play-Doh World
by Video Dominion