KickAss

Get locally bred angel and I guess it's not an option for you so, here's what ill do- get angels that are not too much finniky i.e. no new strains, get old established strains like- black, platinum/diamond, marbled, wild etc., Add them to softened water and then slowly over the period of month or 2 aclemetize them to your natural water source. Most will get aclemetized, try your luck. GL;HF.