Ahhhh...rewlyn to the rescue!
Yeah, rewlyn will know a lot from his current fish-in cycle.
Here is what you want to do:
Like stated above, fish produce Ammonia by passing water through their gills.
Also, poo that is left in the tank, and left over fish food in the tank will also produce ammonia, therefore these should be removed form the tank by using a Gravel Vac to siphon this out.
A gravel vac should be used every water change.
1. Water change water change, and more water changes is what you are going to be doing every day for the next 3-4 weeks straight minimum.
When Ammonia is present in your tank, by the fish, Autotrophic bacteria start to colonize in our filters to process the Ammonia. These Autotrophic bacteria feed of off Ammonia. When Ammonia begins to be processed by these bacteria, the Ammonia is turned into NitrIte.
Now, another type of Bacteria in our filters begin to colonize. These bacteria process NitrIte into NitrAte.
There are no bacteria that Process NitrAte, therefore nitrAte must be taken out by weekly water changes. However, weekly water changes is what you do once you fish-in cycle is complete.
2. If you have an Ammonia reading above .25 ppm and fish are exposed to this, this can give the fish permanent gill damage.
Also, if you have a NitrIte reading over .25 ppm and fish are exposed to this, this can give the fish permanent nerve damage.
NitrAte starts to become harmful to fish if it is up near 50+ ppm.
So WATER CHANGES MUST be performed every day to keep the Ammonia and/or NitrIte at or below .25 ppm.
3. After a while you will start to notice that your Ammonia and/or NitrIte is not rising that high that fast anymore, and this is because you are colonizing bacteria in your filter to process the Ammonia and NitrIte.
At this time you will notice that your NitrAte level is slowly rising. This is good.
Once your Ammonia and NitrIte stay at zero for an entire week WITHOUT you doing any water changes, you can consider yourself cycled!
At this point, which will usually be 4-6 weeks after you started the cycling process, you will have to perform weekly 10-20% water changes to keep your NitrAte down.
Hope this helps a little.
EDIT: Having a pH above 7.0 is perfectly fine. Actually a pH of 8.4 is optimal for the beneficial bacteria to grow in our filters.
-FHM