Well from what i've been reading, the two main apistos i'm interested in, the agassizi and the cacuatoids, are pretty versatile in their water needs. My water from the tap comes in at 7.4ph and 4dkh, i don't have a dgh test. I feel pretty comfortable giving one of them a go. The loaches i'm actually really excited for. I already have the sinking pellets for my cories, plus home grown squash that i've blanched and given as well. My hope for the loaches is snail control. My other two tanks have pretty healthy trumpet snail populations and the majority of my plants will be transplants and trimmings from these tanks. I'd like the snails to stay a little less visible on this one.