Fluid Tank Guide

Hi there people, i'm not sure if somebody has already asked this on the forum but, are there any mcreator guides out there on how to create a proper fluid tank? I've tried looking around youtube and the forum but couldn't find anything. As far as I know about fluid handling, you need to set your custom block into a tile entity and then tick on the enable fluid options on the Energy & fluid storage tab. procedure wise, I have little knowledge on how it works. I tried playing around a bit but nothing seems to work.

I'm trying to make a GUI less fluid tank that sends a text message on how much mb fluid you have left on right click with air, insert fluid bucket on right click and replace said fluid bucket into empty bucket and vice versa. any form of help is appreciated. would be even more grateful if you can post an image of a procedure example as well. cheers!