hey, i have a jug of ammonia, non-sudsing, no fragrance. and a pack of bio-spira all for my 30 gal. what i was wondering was, since it states that i can use just ammonia to start the nitrogen cycle, i guess i would have no use for the bio-spira? and also, does my filter media need to be ready for the bacteria to colonize? should i turn my filter off? or keep it on with no media? i understand the whole part of feeding the bacteria to get the proper spike but confused on how to start it off.