ooohhhhh, didn't notice that you had shrimp in the tank already......
well, theoretically, if you keep the water in your filters, then dirt the tank and cap it with eco-complete, you still will have a lot of beneficial bacteria in your filters......
its difficult when doing a re-scape with a tank that is already somewhat set up. The shrimp could go a day in the bucket, if not a little more, especially if you have your filter running in the bucket as well. That would help. No matter what you do though, a substrate change will cause a mini-cycle in your tank, or just full on restart the cycle.
My cousins have a few tanks, but their all
have bigger fish. If I keep some of the old
gravel in the tank, will it shorten the cycle?
My current gravel is black anyways. I'll use it
to make hills. I do have a old HOB filter I could
use. If dirt is this complicated, I would just use
root tabs. No cycling needed for that... right??