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.
4. Treat your fish for ich when the parasite is most vulnerable. Ich can only be killed when it is not attached to the fish which is when the fully matured parasite drops off of the fish's skin in order to replicate itself into more ich-infecting units. Anytime the parasite is attached to the fish, it is protected from chemicals and treatment is not effective.