I have a 20 gal (24"x12"x16") tank with a whisper 60 filter.
If you are a new hobbyist, you should not be giving advice to other new hobbyists. (I am a new guy so don't ask me for advice!)
I am not really sure about the names for all my plants (because I am not a very smart guy), but that are all real.
Short, not very attractive, slightly goofy looking
The pet trade gets a bad rap for exploiting wild animals but sometimes the opposite is true.
Modern advances in technology affect every industry - even the aquarium hobby.
If you are looking for a unique invertebrate to add to your saltwater tank, consider the sea urchin.