Hey guys! I am fairly new to saltwater. I currently have a 45 g tank that has been running for about a year now. It is far from the best set-up and was a cheap introduction that honestly, I should have done more research on before getting. It is just running a cheap canister filter. I did upgrade the lighting, add in a protein skimmer, and added a UV sterilizer as I learned more about the hobby. That said I have a 2 clownfish and 2 damsels along with various inverts and some Zoas, Palys, and Mushrooms. I recently had a 125g with a 40g sump fall into my lap. It came with quite a few upgrades over what I currently have, but I need to start it from the ground up. I have about 100 pounds of dry rock, and I want to bring over the 50 pounds of live rock I currently have in my 45g (obviously after cycling). That said, I thought about throwing in some of the filter media and live rock from the current tank to the sump of the new tank to help speed up the cycle and maybe help add biodiversity and skip some of the uglies. Is that a terrible idea? I just want to get a good transition so my corals and fish move over happily. I'm in no rush to get the 45g broken down, I just want everything looking nice on the new tank.