His red fins are amazing! What species is he?

He's is an Apistogramma cacatuoides 'orange' Thank you! He's got so much personality too.

Check out my other pics of him, the one where he is displaying his fins is awesome.

Wow! He really is stunning. I wasn't sure what he was. At my lfs they had double red agasizzi which look a bit similar. They want $40 each. Does that sound reasonable? I would love a pair of cacatuoides or agasizzi. Might have to sell some furniture to make room for more tanks

$40 is a bit steep in my opinion.

I was looking for some of these but a seller said they are SUPER sensitive, is this true?

yes for the most part, idk about SUPER pretty hardy if your tank is right.
Don't recommend them for the newcommer