I recently acquired a 75g aquarium as well as everything required to run it as a saltwater tank. My plan is to switch my crowded Mbuna cichlids from the tank they’re currently in (a 55g) to this one. I already have an eheim 2217 I’m running on the 55g that I plan to switch over. The 75g also came with a reef octopus HOB protein skimmer. Is there any reason I shouldn’t slap that baby on there? I know protein skimmers aren’t usually used on freshwater, but is that because they won’t work or do something destructive? My cichlids (mostly Kenyis) eat and poop a lot, so I’m constantly doing water changes and barely keeping up (Nitrates usually at 30 ppm no matter how many water changes I do) and I can use all the help I can get.