SPS (Small Polyped Stony corals) are corals that have small polyps on a calcareouss skeleton. In many instances they are either branching or plated. SPS corals like the Acropora require high light output and strong intermittent water movement, wile the Montipora requires medium lighting combined with a medium water movement. Most SPS corals receive the majority of their nutritional requirements from photosynthesis. So lighting like metal halides, multiple T- 5, power compacts, or VHO fluorescents are ideal conditions for your SPS (Small Polyped Stony corals). Water movement is also a determining factor in keeping a healthy SPS coral, a strong, intermittent water flow, with a wavemaker and multiple powerheads should accomplish these. To maximize their growth rate, it is imperative to maintain a high pH of 8.1 to 8.2, alkalinity of 8 to 12 and calcium levels of 300 to 400, these can be done with the use of a Calcium Reactor or with a two part alkalinity and calcium supplement. Keep phosphate and nitrate levels as close to zero as possible. These can be done with the use of a phoshate Reactor and nitrate levels with a Refugium or a nitrate Reactor. Even thaw your SPS coral receive the majority of their nutritional requirements from photosynthesis, you still need to feed your SPS coral. Feed your coral various types of phytoplankton like DT's Live phytoplankton or Liquid Life USA BioPlankton, and zooplankton, like Liquid Life USA Marine Plankton or Cyclop-Eeze. Baby brine shrimp will be a useful food sores. You will find many different species of Acropora corals such as table top, bottle brush, staghorn and others like Montipora Encrusting Coral, Montipora capricornis, Ruffled Ridge Coral, Pink Birdsnest Coral, Stylophora Coral, Montipora digitata, Cup Coral, Pavona Coral, Spiny Cup Pectinia Coral, Merulina Coral. Note Care should be taken when acclimating your SPS coral. (see ower care guides for proper acclimating procedure)