Clownfish Passed Away

Ok, here is the deal. In the past two weeks we have lost two Clownfish(percs) overnight. The night before they were eating well, looked healthy, and were active as always. We have them in our 29 with the readings as follows
Ammonia 0
Nitrites 0
Nitrates 0
Calcium 380
Salinity 1.025
Temp 80

This is just baffling

 

sorry to hear of your loss +1 It does sound very bizzare that the fish didnt show any signs of bad health?!

 

Dude, I feel you on the loss! After reading your post I went to check on mine... lol

 

Were they new to tank, or old residents.

What other neighbors did they have. Something may just not have liked them.

Any signs of injury (torn fins) etc? -- that might indicate either ruckus between selves or abuse by other fish?

Sorry about loss.

 

Brook possibly?

 

Thanks everyone for their kind words. Yes, I thought about Brook as well, but no visible signs whatsoever. the only other tankmates are another clown, coral beauty, sebae anemone, and a cleaner shrimp, oh and a cleaner crew...

 

Sorry to hear about the loss of your Clowns! You may have had a limited amount of dissolved oxygen and a accumulation of carbon dioxide! Just a thought...
It is adviseable to position a powerhead at the top of your tank to increase aggitation at the water/air surface interface to retard this from happening. Night time is the critical time for the amount of dissolved oxygen to drop drastically as photosynthesis has shut down, unless you have good aeration, or a refugium with reverse daylight lighting scheme!

 

Thank you Coral Reefer. We do have a powerhead at 200GPH. We also have a canister filter onboard that breaks the water at the top of the water line. The tank also has 30lbs of LR and 30lbs of Live Sand....