red-fin shark and temperature

[Par]

Can anyone share experience keeping a red-fin shark at high temperature (86-90°F) for a prolonged period of time? I want to do a heat and salt treatment for (presumptive) ich, and I'm not sure how high I can go before the cure becomes worse than the problem.

 

[Fromthelbc]

i wouldnt go as high as 90... 85 should do you just fine... and make sure its ICH before you stress him out, it also depends on his size, and how long he's been in a tank...