Originally Posted by BellaNavis
Your kidding, right, about take all fish out, my tank will have been fishless for 6 weeks, on Tuesday, except my mandarin. I should have taken the mandarin out also?
To be 100% safe? yup.
Mandarins may be the exception as they are supposed to have some sort of slime that protects them.
To be safe, however, fallow=No fish.