Cell cast sheets are the best acrylics for use in aquariums. These sheets are better suited to bearing the continuous pressure of the water within the tank.
In aquariums, cell cast acrylic sheets offer several advantages over glass. Acrylics are stronger but weigh less than glass. They offer less distortion, thereby providing a clearer view of the tank's aquatic life, and are resistant to cracks and scratches. The insulating effect of acrylics is superior to that of glass. Unlike glass panels, which must be glued together, cell cast acrylic sheets are sealed through molecular bonding, significantly reducing the risk of leakage.