04-20-2011, 06:57 PM
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You will need to do a bit of research, it is very easy.
You know your pH is 7.7 so we are dealing with "basic" water as opposed to acidic water. A pH of 7 is neutral, basically pure distilled water, and nothing lives in that. Natural water will either be on the acidic side (pH below 7) or basic (alkaline, pH above 7) depending upon what it comes in contact with from source. Your tap water pH is most likely due to the source of the water, though it is possible to add stuff to the water to raise the pH. Won't get in to all that, no need now.
The pH is naturally related to the hardness of the water. This you can find out from your water supply people. Many now have a website with the water analysis posted, or if not they can tell you. You want to know the GH (general hardness) and KH (carbonate hardness).
Once you have that, we can move on.
By the way, a test kit is a good investment. API make a very good one that is a Master Combo, it contains pH, ammonia, nitrite and nitrate. These are the basic tests you should do esp with new tanks, but after it is established periodic testing for pH and nitrates are a good idea.
The "everything is perfect" probably relates to ammonia, nitrite and nitrate. The first two are very toxic, the last is less so but still needs monitoring. And for this you will always need to know the number.