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Tap Water Purification Methods

Ways to Treat Tap Water Before Use in Aquariums

By , About.com Guides

After reading about the problems with using untreated tap water to make-up sea salt mixes or add as top-off water to saltwater aquarium systems, here are methods for how to purify it before use that can help avoid many of the potential problems that can arise from doing so.
  • Pretreat the tap water with chlorine, then dechlorinate it before pouring it into our system or making-up your sea salt mix. This method of treating tap water may be good for killing off potential bacteria that may be present, but it does not remove contributory problem chemical elements such as phosphates, nitrates and silicates that give rise to algae blooms, or heavy metals such as copper or iron that are detrimental to reef animals.
  • Purchase a basic tap water filter. These types of filters may not be ideal, but they do somewhat improve water quality by removing chlorine and some contaminates, and are better than using nothing. We use a Teledyne WaterPik Filter on our kitchen tap for drinking, as well as adding top-off water to our 55 gallon aquarium.
  • Purchase an RO, DI, or better yet a combination RO/DI water filter unit. The initial investment may be costly for one of these units, but they pay for themselves rather quickly, and are by far the most effective water purifying filters on the market.
There is nothing that says you absolutely cannot use tap water in saltwater aquarium systems, but most aquarists that have done so and experienced problems will tell you not to do it! If you insist or persist in doing so, at least consider putting into action any of the above suggestions to purify the tap water before using it, or consider any of the following alternative water sources instead!

Next Page > Alternative Water Sources to Consider

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