370ppm from tap. under 10 from my ro unit. here is some info i got off the web regarding water.
Types of Bottled Water (Spring vs. Distilled vs. Purified)
There are many types of bottled water available to consumers today. They are generally categorized according to the source of the water and the methods used to treat it.
The FDA has established the following standards of identity for bottled water products sold in the U.S. Some of the more common types of bottled water are listed below:
Artesian Water This is water from a confined aquifer that has been tapped and in which the water level stands at some height above the top of the aquifer.
Fluoridated This type of water contains fluoride added within the limitations established in the Code of Federal Regulations. This category includes water classified as "For Infants" or "Nursery."
Ground Water This type of water is from a subsurface saturated zone that is under a pressure equal to or greater than atmospheric pressure.
Mineral Water Mineral water contains at least 250 parts per million total dissolved solids, comes from a source tapped at one or more bore holes or springs, and originates from a geologically and physically protected underground water source. No minerals may be added to this water.
Purified Water This type of water has been produced by distillation, deionization, reverse osmosis, or other suitable processes and meets the definition of "purified water" in the United States Pharmacopoeia. Purified water may also be referred to as "demineralized water."
Sparkling Water Sparkling water contains the same amount of carbon dioxide that it had at emergence from the source. The carbon dioxide may be removed and replenished after treatment.
Spring Water This type of water comes from an underground formation from which water flows naturally to the Earth's surface.
Sterile Water This type of water meets the requirements under "sterility tests" in the United States Pharmacopoeia.
Well Water Well water is taken from a hole tapping, etc. This hole may be bored, drilled, or otherwise constructed in the ground.
i've had a few chats with some techs at work that deal more often with this stuff. from what i've gathered, di water has a leaching effect. since it lacks ions, it must remove them from some somewhere. and in doing so, it will drop the ph of water, making it more acidic. we want to maintian a high ph of 8.2+, ions in the water combat the acids (free radicals)produced by waste and organic food decompistion. more ions, the better. any comments or
refutes... ?
peace..
d6
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DeepSix's Reefpage
usefull reference literature:
"corals, a quick reeference guide" by julian sprung;
contians great reference pics, and general information on required care.
"marine fishes" by scott w. michael; contians 500+ essential-to-know aquarium species.
"marine reef aquarium" by dr. robert j. goldstein; all the info regarding the how-to's of successfull reefing instructions
"reef life" by tackett & tackett; info relating to different species and their associated behavior
MM
