I got an AquaC Remora a little over 2 weeks ago for my smaller tank and so far I am not impressed. It's making ok foam but whenever I feed, it makes a ton of micro bubbles and doesn't do any skimming for a good hour afterwards. And it's not just while feeding, it makes micro bubbles constantly, just not as bad as when feeding. Hopefully it's still breaking in and this will stop. Oh yeah, it's also kinda noisy.