ishar said:
Well I don't have a pH test kit, but I will find out what my city water's is and I assume it should be around there.
That's a pretty big assumption.
Ideally, yes, your tank should be around there. But you won't be sure until you test for pH. For example, your water company could be adding temporary alkalines to the water to help prevent pipe corrosion. This typically results in a higher tapwater pH which then, over time, drops as the tapwater is no longer under pressure (i.e. from being in the pipes). Another possibility is that there is a lot of CO2 in your tapwater, resulting in a lower pH. Once allowed to sit in your tank for a while, the pH will rise again.
You will not be able to detect these potential swings in pH with any degree of accuracy until you start actually testing for pH.
ishar said:
What do I do to get rid of ich, and is it contagious?
Highly-contagious to your other fish, yes.
I'll tell you the solution that has worked best for me, but your plants probably aren't gonna like it. Raise the temp. up to 87 degrees F and add 2-3 tablespoons of aquarium salt for every 5 gallons of tankwater. Some may recommend using less, but I've not seen any ill-effects using this particular dosage amount.
I typically go about water changes as I normally would, but performing more with thorough vacuuming should help get rid of the ich from out of the gravel. You will need to replace the proper amount of salt when doing water changes.
Generally the visible symptoms of ich will disappear within a few days, but you wanna make sure you keep treating for it a good week or so after the last sings of ich have vanished completely.
BV