I was wondering what some easy to take care of SPS are? I have a montipora and some zoas right now and I was wondering if SPS are really hard to take care of? I was thinking of getting some acropora frags.

They are not that difficult to take care of other then they are much less forgiving. Everything must be just right as far as your water parameters and lighting.

stylo and pocilopora are pretty easy

montipora digitata are real easy too

Most montipora are easy,also birdnest are tough and fast growers.

What's your lighting like?

SPS, like other corals have different care requirements. Some SPS, like montipora caps & such aren't too difficult as long as you have decent lighting. Acropora's tend to need high intensity light and a higher flow than other corals. They also tend to consume more from your water to build up their skeletons.

Maybe buy one frag and see how it does for a while before adding others. If your lighting isn't good it might still survive, but it won't grow very much at all and it'll probably just look brown.

Acro tenuis and millis are great starter SPS, as are gomezis.

Seriatoporas and pocilloporas are some of the pioneer SPS in natural coral reefs, so they are generally more hardy than Acroporas.