After initially getting my hands wet with a used mixed reef RSM 120 earlier in the year, I recently decided to add a standalone SPS frag tank. I’m sure like many reefers’ first builds, the project started quite small. My initial requirement was to create a frag tank where I could keep SPS without the excess nutrients of numerous fish. I decided to limit myself to two fish that would help maintain the coral. In my initial design, I started with a 2-foot frag tank with future plans for a sum