What’s wrong with my clownfish?

[bellatrixxie]

This is my first reef tank. I bought 2 juveenile clownfish about a week ago and added them to my tank at the same time. Since being added they seem to like each other as they swim together almost always and sleep together in the same area. They are mostly inseparable (At least whenever I observe them). However, I have noticed both of them have ripped fins and one of them in particular seems to be loosing some skin on his head. Does anyone have any idea if they both have a disease or if it is the 2 of them figuring out dominance? They’re in a 42g alone with 1 scarlet hermit crab. They both eat like pigs (Lol) and are active.

tank parameters:
Ammonia: 0
Nitrite: 0
Nitrate: 0
Phosphate: 0.02
Ph: 8.0
Alk: 10.4
Salinity: 1.025
Temp: 77F (25 C)


The slightly smaller one:
Again the same slightly smaller one but a close up of his head:
The slightly larger one:

 

[Billdogg]

That looks to me like a bacterial or fungal infection.