I just removed some odd plants that were propogated in my tank. I did not introduce them. They grew well in my refugium/sump, but would get into my return pump, my UV sterilizer pump and my Ozone reactor pump, which are all in the final compartment of my sump. What plants would you use in your refugium/sump? Do you think they are beneficial or a nuisance? I'm considering options here. I like to run a very natural tank, no filter socks anymore, just a skimmer and the ozone reactor.