add a refugium or have no refugium??? in General Discussion Posted May 7, 2015 I can't see any reason why to be against having a refugium if you are going to take care of it properly. With the space you have I would probably go with a bare bottom chaetomorpha refugium. I would skip sand and rock all together. IME there is just not enough benefit in pod production from that small of space that you would see a noticeable difference to warrant the extra care that adding rock and sand would require. If you stick with just the chaetomorpha you can get a large benefit from the nutrient breakdown without the risks of creating a "sink".Pods will still grow like crazy in chaeto as well, so your not sacrificing to much there IME. But as far as products like Miracle mud and what not, you won't see enough of a benefit in a refugium that small to warrant it. The largest benefit will be the breakdown of nutrients, which will also help your protein skimmer to work much more efficiently. If you are carbon dosing you may get to a point like me that even with heavy feeding of your system you are unable to keep any algae alive in your refugium. If that happens, then a refugium will be of little benefit to you. JME On top of a those good reasons to have one, it's nice to have an area for more delicate organisms like tiny feather dusters, etc., that would normally be eaten in the display tank. I'm moving the small amount of Xenia to just my refugium, before it gets a chance to take over the tank! I have some awesome large fluorescent green Palys in the too, that Mandinga gave me. I know they have strong palytoxin, so that seemed the best place for them. I'm definitely a refugium fan. Go for it! I had tons of pods in there, but they ended up being overtaken by Mysis Shrimp. It's still a good tradeoff. They mostly eat copepods, and there are still a lot of Gammarus (amphipods). Refugiums take on a life of their own! Thank you both for all the information!! I know that JME said to keep it bare bottom with just chaeto but what is your two cents JManrow? Also, should I have the cheato tumbling? Stock it with pods or what?