Loosing fish very fast

[Renzema]

In all my years I've never seen something like this. In 2 days I have lost all my fish other than 2 clowns. Corals look great, shrimp is good, BTA/clam both happy as well...clams. The fish show no signs of stress or anything. All are/were eating heavily, and happy. Dead the next day.

Parameters:

Ph: 8.2
Ammonia/nitrite: 0 pmm
Nitrate: 2 pmm
Phos: 0.02-0.04
Alk: 9 dkh
Cal: 420
Mag: 1500

I'm really at a loss at this point.

 

[Renzema]

Forgot salinity

1.026

 

[Sk8r]

Tank size? SUmp? Skimmer? Oxygenation? What species demised?

 

[bif24701]

Not enough info but could be flukes


Aaron

 

[CarrieB]

Any recent changes?


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[Renzema]

Tank: 34g cube
Sump: eshopps 75
Skimmer eshopps 120 cone
Controller: ReefKeeper
Return pump: Sicce 500 gph
Wavemaker: Ecotech MP10
ATO: Tunze
CO2 reactor: Aquamaxx nano-s

Lost fairy wrasse, sixline, and blenny all with 24 hours.

Nothing has been added or changed in about a month. I do 4-5g water changes twice a week. Same salt for the last 3 months. All water is mixed from RO/DI.

I thought maybe O2, but no heavy breathing. Turned the CO2 off just in case, but lost sixline today.

 

[Renzema]

Not enough info but could be flukes


Aaron

None of fish showed any signs that usually come along with flukes. onyx clowns still look healthy as ever. Just at a bunch of rods food.

At this point just hoping to save my pair. GF absolutely loves them.

 

[bif24701]

Try dissecting the fish


Aaron

 

[Renzema]

Any recent changes?


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No changes at all, I follow a strict maintenance schedule. At the very worst, I may feed later on occasion. That is what is driving me nuts. Everything was looking amazing. Corals have great PE, and inverts are all still active(no deaths).

 

[Renzema]

Try dissecting the fish


Aaron

What should I be looking for? Haven't seen anything on the skin, and the cleaner shrimp is usually eating them.

 

[bif24701]

Look at the gills and intestines. Could have been O2 do you have good gas exchange?


Aaron

 

[Renzema]

Look at the gills and intestines. Could have been O2 do you have good gas exchange?


Aaron

Surface in DT is agitate by return line. Both jets are pointed up to break tension. Water fall over overflow then falls down into the sump. Also skimmer agitates the water. The MP10 pulls enough to cause a slight whirlpool on the surface, only gets about 3" deep max. MP10 is at 100% on short pulse mode.

MP10 should be doing 1400gph+ and return is around 400gph with head loss.

Edit: gills are clear, no sign of parasites. Sixline is to small to really see much in the intestines.

 

[Renzema]

Any other ideas?

 

[kenith]

How long have you had these fishes? Did you get them all at the same time? What was the last introduced fish?

 

[Renzema]

Last fish added was the one that died last the sixline. It had been in the tank for a month. All other fish were had been in the tank much longer.

 

[dreaddinit]

I had the same issue. Two bangai cardinals. Mated pair, died a day a part. No reason I could see. Just here and gone. Bta, shrimp, clowns and chromis act like nothing happened

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[Grkgod36]

Did you qt your last addition ?

 

[snorvich]

Sounds like the mortality time line for velvet.

 

[gone fishin]

Any chance the clowns have become sexually mature and cleaned house?

 

[dkeller_nc]

It certainly sounds like a disease process, especially if last additions weren't QTed.

But just in case, I'd check all of your equipment, especially heaters and pumps, for the possibility of cracked housings. My guess is that a toxin released from a broken heater or cracked return pump housing would wipe out the inverts as well as the fish, but it's an easy thing to check.

Steve (Snorvich) may be able to give you better advice, but if you highly value the clowns for sentimental reasons, I'd be setting up a QT immediately, and making a trip to the store to fetch some formalin. I don't think there are really any reef fish that are resistant to velvet.