Clown Fish Problems

I have had 2 clown fish for 3 weeks two weeks ago one clown fish started chasing the other. I asked here and some people said they were deciding who was male and female. A week ago I added a filmated flasher wrasse. By this time the agression had slowed down but not stoped. This week I noticed one of the clown fish was missing. I found him in a very small cave. None of the clown fish ever hang out in caves. He had also lost a lot its color. It also had white things hanging from his gills and on a couple other places on his body. All the other fish are fine and the other clown fish still chases a little. Also there are visible nips on his fins. I was unable to get a picture cause some one played with the settings on my camera.
Temperature: 80
PH: 8.3
Ammonia:0
Nitrite:0
Nitrate:>5
Salinity:1.023
dKH/KH/Alkalinity:n/a
Magnesium:n/a
Calcium:n/a
Phosphate:n/a
Test kits you own: saltwater test kit pack
Liquid or Strips:liquid
Brand Name:API
Are they Expired?:no


Tank size? 75
Estimated total system? 87 or so

Reef, fish only or, freshwater? fish only live rock so far

Current inhabitants? What and how many? 2 ocerllis clownfish 1 flimated fasher wrasse
Clean up crew? 60 or so astrea snails

How long has your tank been set-up? 3 monthes

Substrate.
Type? sugar sized argonite
Depth? 1-2''

Live rock? yes
How much? 60
Did you recently add some?bleached some

Filtration.
Type?
Protein skimmer? yes reefdevil
Do you wet or dry skim?depends mostly wet
Maintenance schedule for filtration? clean it every week or so
Drilled tank/hang on back overflow?drilled
Sump/refugium. What's in it and how much? refugium is currently empty
Macro? What kind?

Lighting.
Lighting type?t5
Age of bulbs? 3 monthes of use

Feeding
What? mynsis
How much? 1 cube
How often? every day

Water change schedule.
How much?10 gallons
How often? 2 weeks
What salt brand? can't remember right now
Water source? RO/DI TDS of 3

Additives/supplements used?

Do you have a ground probe?
What kind of flow does your tank have? 600 gph return and 2 K3's

 

Most fish aka clowns will kill the less dominant in some situations. It has happened to one of my friends. They have to both be very strong and healthy during this phase. Thats just my opinion.

 

He has shoved himself in a cave and is barely moving looks like he is gonna go soon. Anything I can do?

 

Do you have another established tank or QT?

 

i can stick him in my fuge

 

Well yeah that will work. target feed him dont try to stress him. give him something he will like and all ya have to do is make the fish feel like hes wanted in the tank lol.... keep him there till hes okay then try to see what happens.

 

k got him in there what should i do about the white specks around his gills and fins

 

Let them go it is ick. What is your feeding schedule

 

1 cube mysis shrimp every day and my tank is suffering from it. So i should do nothing about the ich.

 

Okay I dont have that much experience with mysis but here is what I did and lloked at for my clown.

Clownfish: How to Feed Your Clownfish | Quamut: the go to how to