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.
Increase temperature to 30 C/86 F. With tropical fish, an increase in temperature to 30 C/86 F is usually very well-tolerated. Since this temperature prevents reproduction of Ich, it can theoretically cure the problem by itself.