Hi, I am having a very hard time deciding on whether or not to get a protein skimmer or a refugium for my 20gallon AIO cube. I have 3 chambers in the back of my AIO, the first has the heater, the middle has filtration like a sponge, carbon, and ceramic, and the final has the return pump. I would like to make possibly one of these chambers into a refugium or put a protein skimmer in it. I don't think I would have room for both unless I was to get rid of my mechanical filtration that is already in the middle chamber. Which I'm not sure if taking that out now would be a bad idea as it probably has some bacteria built up on it already. Really not sure which way to go on this. I would love to have copepods in the tank so I am leaning towards a refugium so the pods have a place to breed besides in the live rock. Also, the tank has been up for 2 and a half weeks and finished cycling about a week and a half ago, so this is a new tank with no livestock in it yet.