The Eshops nano skimmer latest version fits without issue as an FYI. I’ve got one installed in one of the rear chambers and a fuge basket in the other. So you can do both if you want toThat’s what I’ll do. I was going to run a skimmer but since Eshopps updated their nano skimmer there isn’t one that actually fits in this tank I can find. Plus I feel like a refugium might just be better and more rewarding