I've kept Amano and a single rhino shrimp in water that was about that hard
and a higher pH for a couple years. Their tankmates were a betta in one tank

I tried that too. Worked for months till the Betta ate the rhino shrimp.
Bummer, those were my favorites.


--
Need Mercedes parts ? - http://parts.mbz.org
Richard Sexton | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home page: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net