Setting up new tank - wait for cycling or direct changeover of filter to new tank?

I've got a 10 gallon setup and trying to fishless cycle. It's not doing
anything tho....no nitrites after 1.5 weeks.

I've also got a well established 5 gallon running that I want to shut
down. I'll move everything over to the 10g. (Please, no comments about
how I should setup a 10g tank)

Instead of waiting for the 10g to cycle, can I just move everything over?
The filter is an AQ150. I can't move any of the substrate over since I've
moved to flourite in the new 10g (5g is sand/gravel).

Would moving the filter and as much water as possible over to the 10g be
enough to make an acceptably smooth transition for the fish? ie, would the
filter bacteria die/struggle/decline/whatever from doing this?

.....I've even tried taking one of the sponges out of the AQ150 AND some
gravel in a stocking and putting it in the 10g to help the
cycling....still 0 nitrites after 1.5 weeks. Using Kroger brand
clear ammonia.

Chris