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Welcome to the forum

Turning the heat up to 82 has no bearing on anything.

If you are concerned about the fish dying, then you should discontinue treatment. It's only successful if the fish lives....
 

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Yes, raising the temp does speed up the life cycle, though assuming your tank was already ~80, 82 isn't much different. I exclusively use heat to treat ich - it's all that's needed. Every new fish gets a heat treatment while in quarantine. I raise the temp to 88 for two weeks, and that's that. Doesn't get any easier. I have kept a lot of fish, and I have never had one that could not handle the treatment. Even "cold" wanted fish. It's generally recommended for the temp to be 85-86, but I go higher to ensure the parasite is killed. Different strains can tolerate different temps, but 86 is the most popular recommendation.
 

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That's a tough call. I've never raised the heat higher than 82 because of my cories. I didn't want to take the chance of killing them.
You won't kill them. I've administered the treatment on several species and know countless others that have as well.
 

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It does depend on species. All but one of my healthy rosy barbs died due to heat last summer. They were okay at 82 but started dropping quickly at 86.

Each to their own tho. I've always used a copper medication and never heat to treat ich, as I have certainly seen heat stress in fish.
And all of my rosy barbs have made it through the heat of the summer year after year, as well as the mandatory 88 degree heat treatment in quarantine after purchase. Is the super warm water acceptable for a long term temperature? Of course not. It's a 2 week treatment. I've administered the treatment on more than 50 species of fish without losing a single fish. But some people rather use medications to cure what can be cured naturally. You think its more stressful (though youve never tried it) than medicating, while the opposite arguement can easily be made. i used to medicate when i was a new to the hobby. Yes, to each their own.
 

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Quick cure was my preferred medication - if I were to medicate now, it's what I would use.

A parasite living in balance with its host is difficult to detect. I prophylactically treat for parasites while in quarantine for that reason. I prefer to make full use of the fishs time in quarantine. I do not add any supplemental aeration, even at 88. I've found it to be unnecessary.
 

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Well, sad news. The glass catfish were fine for the two days of medication, but when I tried the heat treatment and discontinuing the meds that were stressing them, they died. There is only one left.
I'm sorry to hear that. It's really best to give the fish a break between treatments when you administer multiple. The fact that they were stressed already was reason to not begin something new, especially because they were not exhibiting signs of the parasite. I;m sorry that a discussion about treatment methods led you to this.
 
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