My Odd Platinum Angelfish

[Snunners]

So I've had a pair of platinum angelfish for about a year now. Both have grown quite well; one came out silver/white, the other more gold. For whatever reason, the gold one's (Kin) fin's are very long and rough unlike the silver one's (Gin) who's are neatly formed (normal). The gold one is also completely missing his left pectoral fin. This isn't recent; he has always been like this as it simply never developed. Anyway, I was just curious to see if anyone may know why this happened? I've attached a picture below.

[Trillianne]

Likely its genetics. At least that was the conclusion I've seen about the "bent" fins. Had one like that myself.

[Snunners]

Likely its genetics. At least that was the conclusion I've seen about the "bent" fins. Had one like that myself.

That's kind of what I figured. Thanks!

[Indian Woods Angels]

Yes genetics. That fish is a super veil comb tail. The other is a standard fin.