what test kits should i buy before getting shrimps? i currently have a ph kit and ammonia kit kinda know what there for what are other kits testing in the water? btw how do people do water changes? just tap water with some seachem prime or some other chemical? i recently heard of ro water would boiled water be kinda simliar as it gets rid of the bacteria etc? im thinking of getting some sort of Neocaridina species they should be more hardy right? would i need to add chemical, mineral other substances for them like other people do for crs etc?