I have a 55 Gallon tank with 2 Koralia #2s and 1 Koralia #1. I am considering getting some sort of wavemaker. I want to keep mostly SPS and some LPS corals. Do I need a wavemaker? If so what is a good choice? For example I saw Dr. Foster has an Ocean Pulse model for $54. Is that worth it or do I need something better?