It's a good concept, but the UX is terrible. Having the Fill button be click & hold rather than individual clicks would save the wrist and the use of an autoclicker. The tabs should all be removed and everything centered around the tank, so that navigation isn't such a chore.

The values for Energy are also off, as it takes way too many upgrades and tedious tank-filling to sustain a 100 ml/s drain. Typos everywhere.

A couple of iterations needed, but I'm hopeful!