Join Date: Mar 2011
Location: College Station, TX
+1 on hardness being more important than ph. I keep cardinals and German blue rams in tap water with a ph of over 8.2 typically, but my gh is less than 1 degree. They're super healthy, confident, and show amazing colors. Just make sure your water is clean and stable, and acclimate them slowly. Once the sick ones die off (a few sick ones seem almost inevitable when buying neons and cardinals), they should do fine for you if the water is kept clean.