Do i have a murderer in my tank?

[Ogi]

I found 3 dead fish on my floor, 2 clowns and one two spot goby, with my coral beauty remaining in my tank, did it kill my fish? all 3 fish found in same spot, just did a huge addition of corals to the tank, previously all four fish lived in harmony for a month. i saw all occupants this morning at 4am happily asleep and when i returned at 5pm 3 of the 4 dead on the floor.

35 gallon display with 20 gallon sump, aqua one skimmer, refugium with various macro algae, close to 50 pounds of lr, two little fishies reactor x2 one for GFO the other for Carbon, tunze wave maker, ai prime light.

ph 8.1
temp78
alk 9
mag 1350
calc 460
salinity 1025
nitrate <5ppm Red Sea pro test kits
nitrite 0
ammonia 0
phosphate 0

tank is 2-3 months old.

 

[WaReefer458]

I doubt it. 35 is a bit small for the coral beauty but gobies are notorius jumpers. The clownfish jumping is a bit shocking. May be time for a screen top

 

[tg1966]

Before we added a canopy we had 2 clownfish jump out of the tank. Get a screen top asap.

 

[scooter31707]

You probably don't have a killer, but I will say the Coral Beauty is the reason they jumped. Most fish jump when they are being chased or they are stressed out and of course you have some that jump just for the hell of it. The Goby could just have jumped, but with the clowns jumping too, I suspect the Coral Beauty is being the aggressor. It's recommend that a Coral Beauty is in 70 gallon or better. I recommend catching and returning him to your LFS and start over.

 

[CafeReef]

I see this becoming a netflix documentary "how to make a reef murder"

 

[albano]

You probably don't have a killer, but I will say the Coral Beauty is the reason they jumped. Most fish jump when they are being chased or they are stressed out and of course you have some that jump just for the hell of it. The Goby could just have jumped, but with the clowns jumping too, I suspect the Coral Beauty is being the aggressor. It's recommend that a Coral Beauty is in 70 gallon or better. I recommend catching and returning him to your LFS and start over.

+1... Every tank needs a cover...fish jump!

 

[Ogi]

I plan on catching him while he sleeps and taking him back, I'll go out and buy / make a screen top today, thank you everyone for you help.