Unfortunately even though the tanks are varying sizes, and the fact that the 3x4 looks awesome and massive, all of these are superseded by Bob's tanks that reach up to 100k even though they're the same size as a vanilla 3x3, just different colours (red, Blue, Green)

Could you add researchable upgrades that activate when Bob's fluid tanks are detected? (optional requirement stuff)
Like a Red Blue Green version of your Fluid tanks so that they're not only bigger in visual but also actual storage?

I am not sure! Creating the graphics for colored variants alone is going to take a fairly large amount of work. The tanks having different dimensions and corresponding capacities (although configurable) is one of the points of the mod, and Bob's scaling doesn't really fit together with that 'philosophy' of realism/groundedness. It won't gel well with "Color Coded Pipes" either, something that I care more about. What are the reasons that you want higher tiers of Zithorian's storage tanks over the ones provided by Bob's Logistics Mod? Is it the specific dimensions and layout of pipe connections?

(PS: I deleted the duplicate post.)

(Closing thread due to no response, not that interested in making any changes anyway.)