Clown Fish Black Spot, Loss of Color

[Russ02]

Hi everyone, I have a2 clown fish, a orchid dottyback, and a few hermit crabs/snails.. but today i noticed the smaller of the clown fish has been hiding and has black spots on both sides of him with color loss starting at the tail. I did some research and i couldn't find anything along those symptoms.
My temp is at 79, everything seemed to be ok, but now this happend..Please help

 

[Sniperhank]

Can you tell us more about the system? Your clownfish looks pretty skinny and is obviously stressed.

 

[Russ02]

Its a IM fusion 20, sock one side, media on the other. Hyrda 26 light, eshops skimmer. Temps are around 78-79. Feed frozen brine shrimp once daily. Other clown is larger but never bullied the smaller one i posted about. PH, Ammonia, Nitrite and Nitrate all in check. Salt levels reading around 31 parts. Unfortunately this fish has died.. :/

 

[Sniperhank]

Well, it def wasn't doing well. What are the actual readings on your tests, all in check doesn't really tell us anything.

 

[melosu58]

Frozen brine is not the best to feed. I would go to mysis shrimp or vitamin fortified brine shrimp. Feeding brine shrimp has no nutritional value.