Hi Jason, I ordered a Remora, some DT Phyto, a cleaner shrimp, and some hermit shells from you. Everything but the hermit shells arrived fine, but I'm not going to complain about nine cents (they didn't arrive). My question is this. I have a large number of microbubbles being returned to my tank. How can I fix this? I missed the option of ordering a maxi jet to replace the rio, would replacing the pump help? At present, I have a bag of carbon laying in front of the water flow, which helps a little. Is there some other form of filter (sponge?) that can help?