1 clownfish dead. Why?

[Rocklefrag]

Have had pair of clowns for 3 months. Just checked parameters today at LFS store and all good. Everyone ate food today and looked fine but woke up just now to sound of overflow bubbling as smaller male clown was stuck in primary drain. Larger clown, royal gramma, and tailspot blenny all fine. Not sure what happened if anyone has any insight I would appreciate it.

 

[Rocklefrag]

Just got done rechecking parameters and everything seems fine. No color loss on fish or damage that I can see. I’m so confused

 

[JPM San Diego]

Any chance the fish was pulled into the drain? I have had fish expire in this fashion; pulled into a drain or pump intake and not able to breath (use their gills normally)

 

[Rocklefrag]

I have ghost overflow so he would of had to get sucked into weir. Which has never happened to any fish or other inhabitants of tank in 5 months it’s been running but I guess it’s possible.

 

[Jekyl]

Any new inhabitants? When was last addition? Fish won't ever get sucked up into something unless there are other factors.

 

[Rocklefrag]

I have large emerald crab and am worried it was him but I see no signs of trauma and I have never seen him make any attempts to go after anything in tank before.

 

[Rocklefrag]

Haven’t added anything new for 4 weeks.

 

[Jekyl]

Crabs, pumps and overflows have little to no chance of killing a healthy fish. Possible illness or aggression while you're not watching would be my suspect.

 

[Rocklefrag]

Larger clown would nip at him from time to time but seemed like a dominance thing that I have seen them do a lot. They kind of ruled the tank together. They were first fish added together. Slept together ate together. Pretty bummed out

 

[Rocklefrag]

What illness would cause only one fish death and should I worried about everything else

 

[Jekyl]

If you were witnessing aggression a lot of times it's a lot worse when you're not around. Fish behave when we're watching.

 

[Rocklefrag]

Here is picture of him. I’m guessing aggression from larger clown at this point that I just wasn’t seeing at night.