Marco Rock Cycles

[Blom]

I just read over my initial question and realized that I never really posed it, although I feel I got the answer. I guess my head is still trying to get back into school mode

I was more concerned that the tank had cycled and would stop the process of creating a larger bacteria colony because there was no further die off. The shrimp should take care of this I would assume. But am I correct in assuming that there needs to be a further source of ammonia for the colonies to continue to build? Im no Biology major so I just look at it as a "food" or "fuel" source for the bacteria, the colony will on continue to grow if there is food right?