Secondary Structure. This is where the secondary structure comes in. The secondary structure is a repetitive 3-D structure of a protein. These are things that people often come into contact with when they're looking at protein structures.
If your fish are more heat tolerant, try increasing the temperature to 32 C/89.5 F for the first 3-4 days to kill the Ich. Then reduce temperature slowly to 30 C/86 F, and hold it there for an additional 6-7 days, or until a total of 10 days have passed.
Keep a close eye on your fish and perform an immediate water change if they show any additional signs of stress (beyond what the Ich is already causing). How long? The salt bath should be maintained for approximately 10 days, or for at least 3 days after any visible signs of Ich can be detected.