Curious to see what everyone with a 29gallon tank has for filtration. We currently have a filter that hangs on the back. Water quality and stability of the tank has been pretty “normal”. I have just been trying to do more research on refugiums or algae scrappers. I’m under the impression those help keep nitrates and phosphates lower. Ours are not out of control or super high but I think having them lower would be nice. Or what are those systems compared to with a protein skimmer. The more research I do I’m all over the place trying to understand what would help my tank more… we want to venture into corals but I’m under the impression those need low nitrates and phosphates. Or a sump under the tank that houses all of it… wanting to stay simple but learning that may not be possibly? Lol help unclog my brain.