is having a bad day

[madmadison]

today in my 90g tank I lost 22 fish outa 32 in a matter of 16 hours all my levels are good ph 7 ammonia 0 temp 79.4f ,it is a establish tank of 2 years I did 25% water change every 1-2 weeks never over fed them,first I though they got shocked frm my heater but its working fine,but the 10 that survived seem in good condition atm , iam stumped! not to sure what to do to fix this so it dose not happen again.

 

[brennae]

Omg! I'm very sorry to hear this. Looks like several of us are having big issues with the fish today.

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[Andy Sager]

today in my 90g tank I lost 22 fish outa 32 in a matter of 16 hours all my levels are good ph 7 ammonia 0 temp 79.4f ,it is a establish tank of 2 years I did 25% water change every 1-2 weeks never over fed them,first I though they got shocked frm my heater but its working fine,but the 10 that survived seem in good condition atm , iam stumped! not to sure what to do to fix this so it dose not happen again.

0 ammonia is good but what about nitrite and nitrate levels?
Illness: Have you added any new fish to the tank in the past 7-10 days?

 

[PoppaRyno]

What kind of fish?

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[coralbandit]

Waiting to hear more info........
Without introducing a contaminent only one disease pops into my head for quick deaths.
Columnaris?
Quick read on 4 different strains.
I'm thinking you are #1?

http://www.myaquariumclub.com/columnaris-and-what-i-have-learned...-1689.html

If you may agree with this diagnosis , then this would be next read;
Fish Columnaris | Fungus & Saprolegnia | Treatment & Prevention

 

[madmadison]

it very well might be columnaris but it seems to only effected all my ciclids n catfish.but it did not effect any of my tiger barbs or my blood parets or red tail sharks and my janitor.i have not introduced any new fish for past 3-4 months.but the air flow in the tank has all ways been high do to amount of fish I had.thx for the info on columnaris cuz I never heard of it befor now.

 

[Delapool]

I have had that with it where schools will be lost whereas other schools are fine (in same tank).