How to build 1 block large aquarium on minecraft

how to build 1 block large and super realistic aquarium for fish and frogs on minecraft.
Download the map to see the buildings up close (and many other similar buildings) and follow me to keep seeing me build!
Download link on curseforge: https://www.curseforge.com/minecraft/...
My Twitter page Twitter: How_Tobuild
My other map https://www.curseforge.com/minecraft/...