Apistogramma steindachneri and A. macmasteri are tolerant of harder and more alkaline water than many other Apistos. Some individuals of Apisto species with wide ranges -- A. agassizi has the largest geographical range -- will also probably adapt well to different water conditions. --------------------------------------------------------- If wishes were fishes we'd all have ponds Pete Johnson / San Jose, CA / petej@wordsanddeeds.com --------------------------------------------------------- ----------- Reminder: Kindly quote parsimoniously when replying ------------- This is the apistogramma mailing list, apisto@aquaria.net. To subscribe or unsubscribe or get help , send the word "subscribe" or "unsubscribe" or "help" in the body (not subject) to apisto-request@aquaria.net