In the video above it shows the ESHOPPS nano skimmer as one that will fit the JBJ nano cube. It will go in the center section, but you have to remove the pump from the skimmer, put the skimmer in at an angle, then rotate it back to position to put the pump back on. Once installed, you will not be able to raise the canopy. So if you just bought a replacement wi-fi canopy you are in a pickle. Protein skimmer, or canopy, which to use. I am considering a sump under the tank in the stand Decisions, decisions!!