Help I might have broken my tank's cycle

[samak85]

Hello everyone

I recently did a lot of water changes in my 30g tank due to fungal disease and I treated it with 2 doses of potassium permanganate with 24 hours interval. So when I returned home today I found the tank really foggy as if it has a bacterial bloom. I don't know if it's because of the water changes or the treatment. In both cases I need your opinion and your help please.
I know that I've been so demanding lately, I'm so sorry.

PS: i didn't do any water change after the treatment, yet.

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[coralbandit]

The purple turns to brown/yellow do to organic compounds in water.
This should not be a problem.
Adding H2O2 to the tank will leave you with the clearest water you have seen!
One of the links(BIDKA) I think has H2O2 dosing I believe.
Hydrogen peroxide - The Free Freshwater and Saltwater Aquarium Encyclopedia Anyone Can Edit - The Aquarium Wiki
^This dosing is also safe^
Common hydrogen peroxide!!
Only a test of nutrients can determine if bacteria is dead.
I really don't think so myself.
Did the water turn purple and how long did it take to change to brown/yellow?

 

[samak85]

Yeah i read that somewhere but didn't think it can happen after a while. Thank you for pointing to this. As always you are the best. I will try it tomorrow even though the fog is white. If it doesn't work then i have nothing to do but recycling the tank.
Thank you so much.

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[samak85]

It was solved by Hydrogen peroxide. Thank you very much for your help. Should I do a water change now?

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[Mebbid]

It was solved by Hydrogen peroxide. Thank you very much for your help. Should I do a water change now?

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What are the parameters? Just because the water is no longer cloudy it doesnt mean that you have solved the problem, just made your water clear temporarily.

 

[samak85]

What are the parameters? Just because the water is no longer cloudy it doesnt mean that you have solved the problem, just made your water clear temporarily.

Sadly I don't have a testing kit

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[coralbandit]

It was solved by Hydrogen peroxide. Thank you very much for your help. Should I do a water change now?

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You are all good my friend!
Do your usaull water change and welcome to the new world of old school keeping!
PP and HP make clearer water I dare say then 9 out 10 members here have EVER seen!.
You by using the PP have not only removed dissolved organic compounds (DOC) that not even 1 out of 10 here have a test kit for!
But also have used a great treatment for the columnaris issue(2 with 1 stone!!!)
I do not know how to measure dissolved organic this can become very complicated without clear answers still!
Enjoy!