Display Glasses
Display Glasses can be used to build enclosures for pretty much any animal, to be on display.
To build it, put them facing the blocks then destroy those blocks, keeping the displays. These blocks you use as base and destroy will be the inside of your enclosure/tank.
You can fill the empty interior later with water, making aquatic creatures tanks.
Display Glasses Rotate by right-clicking them with the Display Glass Wrench; this way you can build tanks/enclosures of any size.
Display Glasses Wrench
x4 Iron Ingot, x1 Light Blue Dye
Display Glass
x8 Stone, x1 Glass Pane
Display Glass (C)
x5 Stone, x1 Glass Pane
Display Glass (H)
x6 Stone, x1 Glass Pane
Display Glass (L)
x5 Stone, x1 Glass Pane
Display Glass (I)
x5 Stone, x1 Glass Pane
Display Glass (Full Glass)
x5 Stone, x1 Glass Pane
Used in middle parts of the tanks.
Display Glass Base
x2 Stone, x1 Cobblestone, x1 Gray Dye
Just a Base block with the same color as the display glasses borders.
Display Glass (Small Top)
x2 Stone, x1 Glass Pane, x1 Gray Dye, x1 Redstone Lamp
A trapdoor style (open on right-click) top for 1x1 tanks, have Light emition.