Hi there,
Yesterday I began to notice that my two Clownfish in my 29g BioCube were acting somewhat odd. Nothing looks awful about them, but their fins look sort of clamped? The pectoral fins are fine on both, but the dorsal and caudal fins look somewhat squished down (like they aren't even raising their dorsal fins at all). I don't see any ich or anything on them, though one of them looks like she may have a bit of blackish discoloration by her head, but that could have always been there...any guesses/suggestions? Thanks so much!
Yesterday I began to notice that my two Clownfish in my 29g BioCube were acting somewhat odd. Nothing looks awful about them, but their fins look sort of clamped? The pectoral fins are fine on both, but the dorsal and caudal fins look somewhat squished down (like they aren't even raising their dorsal fins at all). I don't see any ich or anything on them, though one of them looks like she may have a bit of blackish discoloration by her head, but that could have always been there...any guesses/suggestions? Thanks so much!

But I do think I see them flashing in your video. I would be tempted to grab one and give it a FW dip to check for flukes:

