I'm starting a shrimp tank and have been researching. My tank is 10 gals with black gravel sponge filter moss balls and caves I've been wanting to do a shrimp tank forever. I'm planning on getting ghost shrimp cherry shrimp and blue velvet shrimp. Usually my last experience with ghost shrimp are they get white stripes and die. After further research it's due to improper molting I'm thinking. What do shrimp keepers add in there water to add needed minerals and calcium to shrimp tanks to insure proper molting? I have a regular apI master test kit n will be getting one that test kh n all that stuff.