Three weeks in Pensacola and I had barnacles size of a dime, mostly on prop

Here in my marina in Texas, little growth because 3 storm drains from city streets empty into marina. So we get periodic flushes with fresh water, which kills them. Down side of that is we also get all the trash the idiots toss out onto the streets. We do get some slime, which cleans off easily

I've been getting three years between haulouts