I love my Remora. I hate the
skimmer box though. It's a big pain if you ask me. It's mounted with two nylon screws to the pump for the
skimmer. The pump hangs from the body of the
skimmer by a hose. So the added weight of the
skimmer box causes it to hang crooked, making the
skimmer worthless as a bubble-trap because that side hangs lower and the water flows over the side. Then you have the typical micro-bubbles in your display. Additionally the screws that mount the thing are plastic so Coraline algae likes it. That makes adjusting it a problem when the screws are encrusted in coraline.
If you can figure out another way of mounting the
skimmer box then it should work fine. In a nano that is shallow you may be able to sit it on the bottom of the tank.