jcardona1;3836741; said:
if after a few months you detect a pink color, then its time to change out the carbon. they sell 5lb bags of this stuff for about $30. and im sure that 5lb should last a VERY long time
you mean like a reverse osmosis setup? i dont know much about these types of filters beyond the chloramine filters, but im pretty sure its not necessary on FW. they are used more for saltwater. RO water is so pure that would have to add some minerals back to the water as it will create too sterile of an environment for the fish
Not reverse osmosis more like this:
http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&productId=100078735&langId=-1&catalogId=1&cm_sp=d26-_-plumbing-_-superfeature-_-make_healthier_home
It removes the following:
Filter - VOC/Lead/Cyst
Filter Cartridge - Carbon Block
Filter Change Indicator - LED
Filter Life - 6 Months
Particulate Reduction - Nominal 0.5 Micron
Asbestos Reduction (Percent) - 99%
Atrazine Reduction (percent/gals.) - 77%
Benzene Reduction (Percent) - 96%
Chlorine Taste and Odor Reduction (Percent) - 97%
Cysts Reduction (Percent) - 99.99%
Lead Reduction (Percent) - 98%
Lindane Reduction (Percent) (A Pesticide) - 99%
Mercury Reduction (Percent) - 90%
Turbidity Reduction (Percent) - 99%
VOC Reduction (Percent) - 99%
Feed Water Pressure (psi) - 35 Min. - 120 Max.
Feed Water Temperature - 40-100 F
It looks like it basically takes care of things in the water supply that could be considered harmful or unhealthy in general. I'm not sure if its overkill or not but it looks like its the cleanest you can possibly get without going to full blown reverse osmosis, which as you said isn't exactly a suitable environment for fish. To be honest I don't really know how much those metals affect fish but it would be nice to know that they aren't in the system along with pesticides and VOCs.