I just got the API Tap Water Filter primarily to remove nitrates from my well water.
The API filter produces Deinonized (DI) water that filters out:
All disolved minerals:
- calcium, magnesium, sodium, potassium, sulfate, chloride, carbonate, fluoride
All heavy metals:
- copper, zinc, lead, iron, cadmium, aluminum
- phosphate, nitrate, ammonia, silicate, nitrite
Chlorine and chloramine
- insecticides, herbicides, PCBs, pesticides
The unit includes the instruction manual, filter, filter cartridge, two flex hoses, faucet adapter w/fittings for different types of aerators, Electro-Right and pH Adjuster.
Purchased from Amazon.com
Unit Cost: $41.34.
Replacement cartridge cost: $21.14
- Simple to hook up and use (no tools required).
- Makes perfect filtered DI aquarium water.
- Cartridge use life is relative to source water contaminants so may not be cost practical in areas with very hard water or other elements that would quickly shorten filter use life.
I've only made about 20 gallons as of this writing, but the setup and operation was as simple as it gets.
DI water is actually too pure for aquariums and requires the addition of the electro-right and pH adjuster to put back necessary elements. There are slightly different 'recipes' for Discus, Community and African Chichlid water.