I have the following tank setup: So water is returned from the right sump to the tank, and via an overflow is returned to both sumps. The sump on the left has crushed up and some solid live rock, and I would eventually like to use it as a refugium. I'm a bout to add a protein skimmer to the tank on the right, and have found a few models that will fit nicely and are rated for about twice my tank size. My concern is that any pods in the left sump will get sucked up and skimmed and won't be able to make it to the return pump, and thus to the main tank. Is this a legitimate concern or not something to worry about? If it is a legitimate concern, do I have other options? Should I take all the LR out of the left sump and have it in with the return pump, and have the skimmer in the left sump?