How to find the lowest number in an array?

I am writing an algorithm to find the lowest number in an array however my print statement keeps saying that the lowest number is 0. I have the following:

var list = [5, 4, 3, 5, 2, 50, 8, 10, 300]

func findMin(numbers: NSArray) {

    var minValue = numbers[0]
    var isSmallest: Bool

    for i in 0...numbers.count {
        isSmallest = true
        for j in 0...numbers.count {
            if i > j {
                isSmallest = false
            }
        }

        if isSmallest {
            minValue = i
        }

    }
    print("Smallest value in the list is \(minValue)")
}

findMin(numbers: list as NSArray)

My print statement returns as:

"Smallest value in the list is 0\n"

I feel like the algorithm is correct. Any ideas?

EDIT: Answered my own question

I was iterating over indices and not actual values. Thanks to one of the users in the comments. The correct code should be:

var list = [5, 4, 3, 5, 2, 50, 8, 10, 300]

func findMin(numbers: NSArray) {

    var minValue = numbers[0]
    var isSmallest: Bool

    for i in list {
        isSmallest = true
        for j in list {
            if i > j {
                isSmallest = false
            }
         }

        if isSmallest {
            minValue = i
        }

    }

    print("Smallest value in the list is \(minValue)")
}

findMin(numbers: list as NSArray)