1st time coral keeper

[spw4949]

So stupid question, I've had fish only tanks in the past but have been out of the hobby for awhile. I'm looking to keep some coral for the 1st time, so my stupid question is when talking about coral what is LPS & SPS?

 

[sassafrass]

They are hobbiest designations for small polyp stony or large polyp stony coral

 

[spw4949]

Thanks.