Seems your bacteria are chomping their way through the ammonia in nearly 12 hours now...
No doubt this evenings' results will be a big, fat '0'...re-dose, check tomorrow morning and let us know.
As we discussed yesterday over the phone, keep a close eye on that PH, also your NitrAtes should be shooting up right about now, i shall have a look for a thread in which the 'dangerous' level is discussed.
I don't think will will do any harm to wait until 20.00 this eve to check again as the timings suit me better when having to add the ammonia or is this too long between tests for ammonia at the moment as hopefully it will be added every 12hrs in the next few days?
Have a nose at this thread butt, it explains when to test and when to dose...
http/www.fishforums.net/index.php?/topic/391289-ammonia-am-i-adding-right-amount/
Thanks matey, I'll test & dose at 20.00 if ammonia 0 which I assume it will be, then test at 08.00 but will not dose until 20.00 tomorrow eve if it the ammonia are at 0.
Popped down Wyevale after work earlier and ended up spending almost £20 on a few rocks!!!! Sad or what!!!!