Hi all, After reading the many posts in the past few days about water chemistry, I wanted to ask everyone's opinion on the easiest way to obtain good water values for keeping and maintaining apistos. I live in New York City and my water values are as follows: ph=6.5, gh= 90 ppm, kh=4 dkh. What would be the easiest way to get my gh to optimal levels. I have an RO unit which I haven't used in 4 months (for a reef tank). But would it be easier just to set up a 30 gallon rubbermaid with peat filtration. I have a feeling this would get my water to desired levels. I am looking for the simplest, most straightforward approach. Andy ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!