Thank you, Platy Tetra Fan! Your info is very helpful (as is all the other info everyone has given me)! This is the first thank I've ever sat up, so I'm VERY green and have a couple of questions about what you've suggested. I know these questions will seem very easy for you, but the only way I'll ever learn these things is by asking, right (unless I just fly blindly and kill a few innocent Tetras in the process, which is what I'm trying to avoid)?! So here goes:
First, I wanted to make sure that Tetras and Cories get along well and that there will be enough room for 6 Tetras and one or two Cories (I don't know much about them; size, what they eat, are they peaceful, will they need any other food than what they eat out of the bottom of the tank...).
Also, what should the ph levels be? Does it vary for different types of fish?
Is it alright to siphon the water out like someone else had mentioned?
Does "cycling the tank" mean getting the levels perfect before adding the fish? I know that a tank is constantly going through a "cycle," but once that first cycle is complete (I assume this means that the ammonia and nitrite are at 0 and the nitrate is around 5-10) am I ready to add the first couple of fish? And how long does the first cycle take? Two, three, four weeks? More?
Once the initial cycling period is over and I've added the fish (I'm planning on starting with two Tetras), do I start the process of testing again? And just test once a week (if everything's looking good) and treat the tank if needed? Do I then add a couple more fish once the levels are back to 0 ammonia and nitrite and 5-10 nitrate?
I just want to make sure I'm doing things right before I start. Thanks again! I really appriciate your information!