Certainly a good skimmer and a fuge full of Macro Algae will help with the bio load. Live Sand and LR will also help with Nitrogen cycle. Weekly water changes will also help. So as you can see there are many factors involved as to whether you can get by with X amount of fish in your tank.There's a rule of thumb as to so many inches of fish per gallon, but I'm not so sure about that guideline working. I have a Yellow Tang, 2 False Percs, 1 Fire Goby, 2 Banngai Cardinals and I wish it would go away Sixline Wrasse.I Peppermint Shrimp, 1 Cleaner Shrimp a couple of Emerald Crabs and some Hermits and a hole bunch of Corals. So far no detectable Nitrates or Phosphates in my 55 gl.Does this help.