New look QTs

[ThRoewer]

Do you just pour bleach in the existing qt tank?

I have bleached whole QTs after all fish in there died from something I couldn't identify. I wanted to have everything sterile before breaking the tank down to be on the safe side.
But there is a chance to ruin the tank with that if you leave the bleach in it for too long. I had several tanks starting to leak after leaving bleach in there for a couple of days. I think the bleach is attacking the bond between glass and silicone.

 

[Sweeper13]

I have bleached whole QTs after all fish in there died from something I couldn't identify. I wanted to have everything sterile before breaking the tank down to be on the safe side.
But there is a chance to ruin the tank with that if you leave the bleach in it for too long. I had several tanks starting to leak after leaving bleach in there for a couple of days. I think the bleach is attacking the bond between glass and silicone.

Dang..Did you dump the whole bottle. :eek1:

 

[ThRoewer]

Dang..Did you dump the whole bottle. :eek1:

No, not even a lot. I just got busy and didn't get to clean out the tank until a couple of weeks had passed.
I had it earlier with a tank I had outside and used as my bleach bath. When that one started leaking I thought at first it was the outside environment (sun, heat,...) but when a second one inside failed I figured it may be the bleach.
So now I don't soak tanks with bleach any longer than just a few minutes.

Also noteworthy: there are some fish pathogens that are unaffected by bleach. So it isn't the universal silver bullet most take it for.

 

[HumbleFish]

Do you just pour bleach in the existing qt tank?

I dose 100ppm as per this guide: https://dec.vermont.gov/sites/dec/files/dwgwp/DW/chlorinedosageemergencydisinfection.pdf

Let it circulate for 48 hours and then dose sodium thiosulfate to neutralize the chlorine: https://www.edspumps.com/water-treatment/documents/Antichlorination.pdf

(Many pool places sell Chlor Out which is sodium thiosulfate and safe to use.)

You can use a test kit from a pool supply store to make sure all the chlorine is gone. Once you are sure it is all out... Test the alkalinity, buffer if needed, and then start dosing Fritzzyme, Bio-spira, Dr. Tim's, etc. to reseed the tank.

P.S. I also take this opportunity to bring all my pumps/filters outside and give them a good cleaning using vinegar.

 

[Sweeper13]

Thanks Guys..