dorsal fin

Hi, I have two clownfish that are missing their dorsal fins. Did they mess around with the wrong fish or is it a disease? It’s a fairly peaceful tank, but the clowns (aka Pennywise and Twisty) can be a bit territorial. Thanks!

I bought a Midas Blenny 2 days as the newest addition to my 75 gallon reef tank and it has been swimming/perching in the upper corners of the tank since its introduction and often upside down or wrapping itself around suction cups for the heaters or pumps. Initially, I thought it was just...