With your water, you are better off going with Neos or maybe Tigers.
Is it possible to keep Crystals in it? Yes, but they may not breed as well as if they were kept in the preferred water parameters. It's not recommended to use tap water on buffering substrate as it can cause pH swings and cause the substrate to lose it's buffering capacity sooner. (as has already been mentioned)
Highseq, Clownplanted and I all probably have the same water source, although it seems ClownPlanted's water gets messed with a lot... When I first started with shrimp (kind of thrown into it unintentionally), all the shrimp kept dying because the water was too soft. Everyone says "cherries do fine in tap water!", and yet, mine died. Had to do my own crash course into GH, KH and TDS. Once I was able to confirm why the shrimp were dying, I was then able to make changes to the water parameters to help them survive longer... I've done RO with [a crappy] remineralizers, my tap with my sisters tap (lives less than 10 minutes away, her water is 10 KH and 19 GH...), tap with remineralizers...
I can say from experience that it's best starting off with what you can handle rather than trying to adapt shrimp to parameters that they probably wont thrive in.
I currently work out in Spanish Springs, but I'm not familiar with the horse community.
Last edited by Zoidburg; 08-11-2017 at 03:58 PM.