Can someone please identify these 3 corals?

[LovinlifeinGuam]

Hey, can anyone identify these 3? I don't need to know the exact trade name just what type and difficulty level...I think one is an acro, one is a digi, and I don't know about the other and I'm not sure about the difficulty level cause I haven't had many SPS but I want to start getting into them!

 

[FMF0331]

digi - easy
birdnest - easy
tenuis - medium to hard

 

[LovinlifeinGuam]

digi - easy
birdnest - easy
tenuis - medium to hard

Thanks!...I have a coral/invert nano tank going and I want to get a little more color in there...if I'm not mistaken, the tenuis needs high flow and high light...right? I'd like to try a "higher" level coral like that so I'll get that one...do the digi and birds nest need high flow? I have a blue digi already and it's doing really well but I don't have a whole lot more room in a high flow area