for newbies, cynarina (not aggresive) pwede may katabi, blastomussa not aggresive too, acan aggresive so distancia amigo, plate aggresive ulit, hammer aggresive din... being a newbie hindi dahilan yan para magpabaya ka always have the motivation to learn and excel. have your calcium to 450-500 ppm, maintain a good ph and alkalinity, a good temp, install fans para pag mainit ang panahon or chiller kung kaya ng budget at bigyan mo ng malufet na ilaw (LEDS). maintain a healthy filtration system. you can feed your corals with chopped shrimps or clams once a week... thats it your corals will thrive rather than survive. dont stop learning dude and you'll be guru in no time