A sad, sad day for FishyFishy

[naesco]

Sorry to hear this.
When almost all fish die suddenly in a tank it is often oxygen starvation. This can happen for a number of reasons including a combination of a tank overheating, sand bed disturbance, too many fish for the size of the tank and lack of flow near the top of your tank.
Did you observe that the fish were swimming near the top of the tank prior to leaving your home?

[FishyFishy!]

No, they were all perfect, and swimming normally. I have high flow, and surface aggitation in both tanks. They were all fine and thriving for more than 6 months. All my corals look fantastic still, and are all growing normally. I don't think that either of the tanks were over stocked.

[naesco]

Originally Posted by FishyFishy!

No, they were all perfect, and swimming normally. I have high flow, and surface aggitation in both tanks. They were all fine and thriving for more than 6 months. All my corals look fantastic still, and are all growing normally. I don't think that either of the tanks were over stocked.

Fishy you have a 2 foot , 25 gallon tank with a tang and a butterfly in it. Much much too small a tank for these type of fish.
For a tank you size 3 small fish would be enough

[Wayne]

Sorry to hear about the fish losses Never a fun thing to come home too.

[toytech]

Overstocking isnt likely the problem , all depends on equipment .

[Stumped]

Originally Posted by toytech

Overstocking isnt likely the problem , all depends on equipment .

First off I definitely am sorry to hear about the losses. It's certainly a terrible thing to lose any fish, let alone that many in such a short period of time.

But I have to disagree with this statement. I'm not saying it was the cause of this situation, but overstocking a small tank can definitely lead to this outcome.

With the relatively low surface area in smaller tanks, all it takes is the temp to go up and then the oxygen saturation goes down with it, and then it's all downhill from there.

Other than the blenny, all the fish are quite active and require more oxygen rich water than a perching or substrate dwelling fish would. I have no idea what kind of equipment he was running, but for the most part no small tank has an excessive amount of equipment running in it. Cost and space are prohibitive. Which is why the margin for error with them is usually much smaller than a larger tank.

[Reefpins10]

My heart goes out to you for losing the fish . I had lost all my fish from ich within a month too, so I totally understand how you feel right now. I am so sorry for you, Fishy.

[amy]

Oh, thats very sad! And frustrating too, I wonder if the mysis company would be willing to test the food and see?
I am sorry for your loss

[Delphinus]

Wow that's terrible, sorry to hear it man.

How are the tank temps?

[FishyFishy!]

BC29 is at 80.2
Shallow 30 is at 78.5

Read with two different thermometers for accuracy.

Just bewildered at this point