Help! Need info and tips about keeping these fish!

do regular pet stores sell these too?
 
ok... I'll refine that. Do MOST pet stores sell that equipment?
 
ok. now i got it
 
If i got an anemone, will it harm other fish even if theyre "reef safe"? And should i put an anemone on top of live rock?
 
well, i know the year part and i want a long tentacle anamone ( it might be called a bubble tip but im not sure. whichever one hosts the clown fish).
 
If anyone has any ideas of beginner fish or inverts that i could put into my tank please write them down here.
 
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