My Angels, Pleco And Betta . . . Dead!

[HeroDave]

Ive just got home, looking in my tank. My large pair of angel fish, my betta and my pleco are all dead! They're all lying on the bottom of the tank next to each other dead! WTF's going on? Whatever goes into my big tank dies! Theres just one molly left in there now!

Im so annoyed, frustrated, sad and i know it sounds harsh out of pocket!

 

[WILDER]

Need to look at water stats first thing to rule out.

 

[Gatorbait]

Oh no! I'm sorry to hear that. That's horrible.

What are your water params? Temperature? Any aerosol been sprayed lately?

What else has died in there previously? Do you suspect a disease perhaps?

 

[HeroDave]

I did a water test just yesterday, results were fine apart from the NO2 and NO3 levels were slightly above their original.
The tank was emptied, cleaned and recycled so whats died before isnt relivant!
Some disease prevention/treatment solution was applied to the water earlier but we're talkin afew few drops!

Ive spent well over £400 on this hobby and all ive got is . . . erm . . . nothing! I think im gonna call it a day!

 

[WILDER]

If nitrites were high there is your reason.

 

[Amunet]

Awww, I'm so sorry your fishy died
Sounds like your tank is still cycling. When was the last water change? As Wilder said, could've been from high nitrites.

 

[Gatorbait]

I did a water test just yesterday, results were fine apart from the NO2 and NO3 levels were slightly above their original.
The tank was emptied, cleaned and recycled so whats died before isnt relivant!
Some disease prevention/treatment solution was applied to the water earlier but we're talkin afew few drops!

Ive spent well over £400 on this hobby and all ive got is . . . erm . . . nothing! I think im gonna call it a day!

I only asked what died before to see if there was a pattern going.

I'd have to agree with Wilder that your nitrites killed your fish.

 

[tmack]

Impossible to say the nitrites killed the fish till we know exactly what the levels were on the ammonia, nitrite & nitrates. Was the temperature checked? - the heater thermostat may not be functioning properly. The aerosols might be a possibility if someone else was there with the fish? Do youhave children around that may have put something in thetank?

 

[kelp]

Did you let the tank cycle before you added the fish? By your params, it seemed like the tank was about to finish cycling. I hope you didn't completely drain the water and clean everything because your tank was almost done cycling.

 

[Darkerwhite2]

How long has this tank been running with the fish you had? Could something have gotten into the tank. ei. cleaning supplys, aersol spray, anything foreign to the tank prior to the tanks mishap? the same thing happened to my girlfriends sister, her roommate poured carpet cleaner into her tank and killed all her fish. The roomate left the bottle right in front of her tank so she knew what happend.

Im sorry for your loss.

 

[HeroDave]

Tank was cycling a month
The cleaning was BEFORE the tank was filled to cycle
Nitrate levels are only ever so slightly above the bottom reading on my test kit so i cant see them being high enough to have killed my fish!
Nothing could have got in the tank, its in the living room, good lid, only opened for feeding. Nothing gets sprayed in the living room!
Last water change was a week ago!
Im really stumped here! Ive spent so much and got nothing but agg . . . If it still goes wrong after that im debating if i should just knock it on the head!
Any ideas what my tanks worth?

 

[yvez9]

this may sound silly, but my girlfriend's betta died because of the gravel.

it was a cheap brand and the red stain on it leached into the water and killed the fish. afetr a few days only the betta was ill and it didn't live a week

when i washed the gravel, i noticed it was going white and after a few minutes, it was clear the color was washing off

make sure nothing in the tank could be leaching chemicals... glue, paint, etc

 

[three-fingers]

You did say your tank had an nitrite reading, which means one of the following : Your tank wasn't actually cycled properly, you added too many fish too fast or that your biological filter wasn't big enough .
There should never be a nitrite reading in any cycled tank with a filter .

 

[Darkerwhite2]

You did say your tank had an nitrite reading, which means one of the following : Your tank wasn't actually cycled properly, you added too many fish too fast or that your biological filter wasn't big enough .
There should never be a nitrite reading in any cycled tank with a filter .

you think that would kill all the fish around the same time?... i dont think the deaths were caused purley by his nitrite levels, yes the tank not being cycvled would have weekened the fishes immune system allowing something else to kill the fish. Did you rinse you gravel really well before adding it?

 

[Gatorbait]

Tank was cycling a month
The cleaning was BEFORE the tank was filled to cycle
Nitrate levels are only ever so slightly above the bottom reading on my test kit so i cant see them being high enough to have killed my fish!
Nothing could have got in the tank, its in the living room, good lid, only opened for feeding. Nothing gets sprayed in the living room!
Last water change was a week ago!
Im really stumped here! Ive spent so much and got nothing but agg . . . If it still goes wrong after that im debating if i should just knock it on the head!
Any ideas what my tanks worth?

It doesn't matter how slightly high your levels are when it comes to ammonia or nitirite. ANY levels are lethal to fish.

You said you cleaned your tank previously after your fish died before. How long was your tank setup before when your fish died? Was your tank cycled? Was your nitrite and ammonia both at 0ppm? How are you cycling your tanks and when/how many fish do you add?

I know you told me it doesn't matter before but it might. At least we can rule out what I'm thinking and move on if I'm wrong.