HELP! FISH ARE DYING

[Jorge54]

I did a water change of 25% and used neutral regulator and now all my fish are dying. How can I fix it. I have a 60 gallon tank. I have had it for 3 years and never had this problem before. 

[Guppysnail]

Do you always use nuetral regulator? If not what made you choose to use it now?

Did you remember dechlorinator?

Listing your normal water parameters and current water parameters are going to help folks help you. 
 

Ammonia, nitrite, nitrate and ph are the important ones. 

[Jorge54]

On 11/26/2023 at 11:55 AM, Guppysnail said:

Do you always use nuetral regulator? If not what made you choose to use it now?

Did you remember dechlorinator?

Listing your normal water parameters and current water parameters are going to help folks help you. 
 

Ammonia, nitrite, nitrate and ph are the important ones. 

My Ph has been high so that why I used it. 

Yes 

 

[quikv6]

Ammonia.....You have significant ammonia.

I would continue with the dechlorinated water changes....perhaps twice a day. You can use a product like Prime to "detoxify" ammonia for 24-48 hours.

As for water change volume...I would consider 50% safe.....even twice a day, to bring that ammonia down. That will treat the symptom, but it would be helpful to find the reason the ammonia spiked in an established tank. Something either harmed the beneficial bacterial, or there could be dead fish still decomposing in the tank.

Edited November 26, 2023 by quikv6

[nabokovfan87]

First question I had looking at the tank photos is what is your filtration and how is it setup?

Very high ammonia, so you should do an immediate 80-90% water change and test daily for ammonia.  You can use dechlorinator once every 24 hours. Double dose it for this instance, perfectly safe to do so.  Following that, you'd want to do a max 50% water change daily until the ammonia and nitrite is no longer an issue.

As a general rule, if you do a water change and "something went wrong" with an additive, the guidelines are to add some carbon and do a big water change.

Edited November 26, 2023 by nabokovfan87