What is killing my fish?

[ljn0221]

Ok i am Luke and about 2 years ago i worked at a fish store and new everything. Over the years i have been busy with school started high school and everything. So i did not have much time to keep track of my tank. Now i decided to start it again so i got my water tested and everything was good.
So i went and bought about 150$ is fish.
In under 2 weeks all of them are missing. No sign around the floor or anything in my tank that could eat them
Any ideas?

 

[al mc]

Luke...Sorry for your losses. I believe you are going to have to post a lot more info about your tank (size, amount of rock, all fish and inverts you know where in the tank) and water parameters ( SG, ammonia, trites, trates, pH,
temp.) before anyone has a chance of helping you figure this out.
Also, How long has the tank been established?
Did you cycle it?
Do you have a QT tank?
Were all the fish added at the same time?

 

[sprinter144]

The fish are missing, not just dead? Sounds like theft to me or a really bad high school prank. Otherwise check all your filters and pumps. I once had a lemonpeel angel swim into my power filter when the strainer fell off.

 

[ljn0221]

Ha ya sorry I am new coming back in and i am fairly tired.
It is a 29 gallon eclipse tank with the filter built into the hood. I changed out one of the lights with a HO i think it was called ( i worked at a fish store 2 years ago and forgot all the names) I now only have 1 clown fish that has been there the whole time
The tank has been established for well over 3 years I have about 3 crabs left
1 sand sifting snail 1 turbo snail and 1 clown fish. I dont think i should have anything in my tank that would kill all of my fish and my water parameters are normal (sorry i forget numbers) I had them tested at my old work place.

 

[ljn0221]

Originally Posted by sprinter144
http:///forum/post/2599113
The fish are missing, not just dead? Sounds like theft to me or a really bad high school prank. Otherwise check all your filters and pumps. I once had a lemonpeel angel swim into my power filter when the strainer fell off.
I live in my house with my parents nobody else comes in haha.
But ya checked everywhere and nothing.

 

[ophiura]

If your tank has basically been "empty" or with very low bioload for a long time, and you suddenly added a bunch of livestock, you quite likely sent it back into a cycle and ammonia may have killed them. If you have not been good at keeping your alkalinity in check, a pH crash may have killed them. Specific water params are definitely needed to rule this out - not before you bought the fish but now.

 

[ljn0221]

Originally Posted by ophiura
http:///forum/post/2599277
If your tank has basically been "empty" or with very low bioload for a long time, and you suddenly added a bunch of livestock, you quite likely sent it back into a cycle and ammonia may have killed them. If you have not been good at keeping your alkalinity in check, a pH crash may have killed them. Specific water params are definitely needed to rule this out - not before you bought the fish but now.
I guess that could have worked but they all disappeared?