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.
The x-ray film should be placed in the developing solution and agitated briefly to remove any air bubbles. It should be left in the developer for five minutes, if the tem perature is 68 F. If the temperature varies from 68 F the developing time should be varied accordingly.