In an aquarium, how to nitrogen, ammonia, and ph inter-relate?

I got some ammonia tablets today, and I noticed some things for pH, and some to control nitrogen.

If ammonia is NH3 (or is it 4?), there must be a relationship between the three.

I really don't want to buy three different products- which is the best?In an aquarium, how to nitrogen, ammonia, and ph inter-relate?you may need the pH pluses or minuses, depending on what fish you have. everything else is extra junk you don't need, but the store is trying to convince you to buy.



if you need to know about aquariums, it's much easier to read up on it in a forum rather than disconnected questions on this site



check out this:

http://www.fishforums.net/index.php?show鈥?/a>



and thank you very, very, much for asking these questions before you buy the fish. i respect that.