[karimwassef]

Bacteria isn't the same as live rock and not all live rock is the same.

I added a lot of live rock... Even to the point of tossing some of my man made rock to make room. I believe it helps a lot. Introducing biodiversity is key.

The problem with captive systems is that they can be prone to extinction events, many of them caused by us! Then, a lone and insidious protist runs rampant.

It's a gamble that the live rock you introduce will have the right predator, but why not try?

But small pieces from many diverse biosystems would have the best chance of hitting the lottery... And finding the controlling ciliate that chomps down on the particular dinos you have.