> Most ion-exchange resins that you can get from pet stores will do nothing to > reduce the dissolved mineral content of your water. As the name implies, > they are simply exchanging one ion for another, usually sodium for calcium. > They are recharged by putting in salt solution. It hardly seems beneficial > to be adding salt ions to the water when you're dealing with apistos. > > Zack > So I have to go for a RO unit then. Is there some alternatives to RO? I don't quite sure that rain water will do in my area since I live in the middle of pulluted Bangkok. Well....need to invest! How about if I keep on with the KH/pH lower products like Tetra's? Does it actually reduce KH or just give out strong acid? What is its disadvantage apart from its price? Cheers, Arthit Bangkok, Thailand. -- _______________________________________________ Get free e-mail @thailand.com and more. Visit thailand.com for everything you need to know about Thailand. http://www.thailand.com. "Comprehensive Thai Insights for the World." Powered by Outblaze ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com.