Should I go with, a refugium, algae turf scrubber or a chaeto reactor? Or should I go with a mix of two? I will have some wrasses in the tank, and I may add a dragonet when the tank is mature. So, I want to have a good population of copepods. I am not sure whether I should set up a refugium, ATS or a chaeto reactor. The bottom of the sump will be covered with bio media, either blocks or cubes. I believe that the copepods would thrive in there, right? If I keep chaeto should I have it in the refugium area? If so how should I tumble it? Or should I use a diy chaeto reactor? What would you say? Or should I use the ATS. The other option that I can think of is, keeping chaeto or other macro algae in the refugium section and have a small ATS what do you think? Then I will have the nutrient export from the algae scrubbers and some nutrient export from the chaeto which will also prove a place for the pods to stay. But then again I want to turn the refugium area into a small frag rack so should I use a chaeto reactor instead? I’m really confused about this part.