OK mate, I've had a look at the report. Are you kidding me? This water is awesome for plants. According to the report, the water is not "super hard" at all. It's only "quite hard" at a mere 18 dGH and 10 dKH but it is very high in TDS at 727 microseimens. OK, so you won't be breeding any soft water fish with this on a regular basis but it's got top notch nutrient levels. One never likes to see any level of Sodium, but 46ppm ought not to be too much of an issue.
So really there is not much wrong with this water unless you are using some kind of salt based water softener and then putting that water in the tank.
If a water softener is not being used, then that eliminates just about all of the tap water possibilities. Unless you are trying to grow a tankful of Tonina, you shouldn't have any trouble. We really would need to take a look at your technique, and you need to describe just exactly what the symptoms are and what your setup is. I'll tell you right now that I'm 95% confident you have a CO2 issue. Why am I so certain? Because 95% of all plant problems are CO2 related.
I'm happy to take a closer look if you'd care to provide more details mate.
Cheers,