All Fish Dead After Water Change

[paranoid1123]

HMmmmm... Fish are all old at the exact same time? That is rather strange... I hope you find the answer and I hope your twitchy fish are still alive!!

the all died.

[Dow]

HMmmmm... Fish are all old at the exact same time? That is rather strange... I hope you find the answer and I hope your twitchy fish are still alive!!

[paranoid1123]

Check nitrates and nitrites?

nitrates 0 nitrites 0 in the tank and tap.

How long has the tank been running for?

the tank has been up for over 2 years. Ive never done any thing different. take water out about 75%; add prime 1 capfull for a 55gal, add water. been doing the same thing every week for the past 2 years.

ps. all fish are dead except my lobster and placo

[Dow]

Check nitrates and nitrites? My fish would do this but they would lay on their sides and their gills would flare. Tested my water and my nitrites were really high so I put some plants in, got a bubbler and got some Tetra Nitraban and it took care of it. Good luck!

How long has the tank been running for?

[Zulaab]

I would increase the amount of Prime, and I would add a ton of aeration to the tank. Prime needs oxygen to do its magic.

[paranoid1123]

All Fish Dead After Water Change

Test for ammonia. Houston water has been messed up lately.

It ammonia tested all 3 tanks and tap. All tested 0 also prime should take care of the ammonia.

[ssrprelude]

Test for ammonia. Houston water has been messed up lately.

[paranoid1123]

Its fresh water, the temp was about the same, and I used Prime.

[gotticgs]

im in the process of change my water and all my fish went crazy and are now sitting belly up on the bottem of the tank. i added purigen to my tank about a week ago and this is the first water change since. 0 ammonia 0 nitrates 0 nitrites. the only thing that ive done diffrent is add the purigen a week ago. the fish are look dead but seem to be twitching on the bottem im not going to flush anymore untill im 100% sure they are dead. please help me find out what is killing my fish.

need more info

fresh or salt?

did you use water conditioner

did you check the temp

[paranoid1123]

im in the process of change my water and all my fish went crazy and are now sitting belly up on the bottem of the tank. i added purigen to my tank about a week ago and this is the first water change since. 0 ammonia 0 nitrates 0 nitrites. the only thing that ive done diffrent is add the purigen a week ago. the fish are look dead but seem to be twitching on the bottem im not going to flush anymore untill im 100% sure they are dead. please help me find out what is killing my fish.