Miss Wiggle
Practically perfect in every way
sorry it's a little hard to follow exactly whats going on, you've added the first 5ppm of ammonia and it's now nearly 0.... right?
if so then add another 5ppm and keep monitoring, it'll drop down again and then you top it back up keep doing this until the ammonia drops to 0 in 12 hrs, then you start worrying about the nitrite, it'll most likely be sky high at this point you keep adding ammonia every day until it drops down to 0. when both ammonia and nitrite read 0 after 12 hrs then the cycle is done.
what you have to remember while cycling is your trying to make a 'soup' with the right conditions to grow bacteria in, bacteria don't need the same things as fish do so for now the bacteria are your priority, they actually do best with a pH around 8ish, so droping it down to 6 now would cause problems with your cycle.
at any rate people put too much importance on pH levels for fish, the vast majority of community trops will be absolutely fne at 7.5 and adjusting pH is hrd to get right, it easily becomes unstable and starts fluctuating. a fluctuating pH will do infinetely more damage than a stable one a point or two higher or lower than 'ideal'. so in about 95% of cases the advice is to leave the pH well alone.
if yo can give us an idea of the fish you want to keep then we'l let you kow if there's any need to ajdust the pH or not.
if so then add another 5ppm and keep monitoring, it'll drop down again and then you top it back up keep doing this until the ammonia drops to 0 in 12 hrs, then you start worrying about the nitrite, it'll most likely be sky high at this point you keep adding ammonia every day until it drops down to 0. when both ammonia and nitrite read 0 after 12 hrs then the cycle is done.
what you have to remember while cycling is your trying to make a 'soup' with the right conditions to grow bacteria in, bacteria don't need the same things as fish do so for now the bacteria are your priority, they actually do best with a pH around 8ish, so droping it down to 6 now would cause problems with your cycle.
at any rate people put too much importance on pH levels for fish, the vast majority of community trops will be absolutely fne at 7.5 and adjusting pH is hrd to get right, it easily becomes unstable and starts fluctuating. a fluctuating pH will do infinetely more damage than a stable one a point or two higher or lower than 'ideal'. so in about 95% of cases the advice is to leave the pH well alone.
if yo can give us an idea of the fish you want to keep then we'l let you kow if there's any need to ajdust the pH or not.
Or store bought ones at least. They are that imbred that all their strength has gone, and they are often hard now for "expert" aquarists to keep in well established tanks 
I would wait untill your tank has been going for 6 months with fish in before you try your hand at them, and where possible, get locally bred fish to increase your chances of success...
