I am replacing my present sump with a larger one and adding a dual carbon/gfo reactor. I have a 180 gallon. Will this cause my tank to cycle? If it will, does anyone have a way to avoid that? What are your recommendations on how to go about changing it out. I just want to do it right with the least amount of stress for tank inhabitants. I'm changing it out to make more room for my skimmer and build a better refugium. Shoud I put live sand and chaeto or rubble and cheato. Also, I have a huge pod population down there. Will this process kill them?


