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.
I had a bad a outbreak of Ich in a 29 gallon tank with giant danios, neon tetras, black neon tetras, lemon tetras, long finned rosy barbs and a cory cat. The Ich hit the neons very hard. It didn't infect the others too much and the cory cat and lemon tetras not at all. I turned heat to 32 C for 7 days.