At 25-125 gallons per cartridge and they cost $21.99, no savings there...tonymofo;2439122; said:Here's an easier option so yo don't have to drill the tanks or setup a new drip system water changer. How about getting an extra long python and a big bottle of prime decholorinator. If you wanna take it a step further try getting a tap water filter from Dr.foster&smith http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=4484. No buckets, you save some $$$$ all you need is a little dedication and schduled maintance.
Just remember to show her how to use an API test kits for Ammonia, Nitrite, Nitrate and PH