How would I be able to make this thing in my minigame last longer?

So it's like every second this thing pops up each time, I want it to pop up once, then have a delayed time so after that time is done, another pops up.

function watermagic()
	if game.Workspace.WaterMagic.WaterPlates:FindFirstChild("Part") then
		waterplates = game.Workspace.WaterMagic.WaterPlates:GetChildren()
		ranNum1 = math.random(1, #waterplates)
		waterChosen = waterplates[ranNum1]
		for i = 0, 1, 0.05 do
			if waterChosen.Parent == game.Workspace.WaterMagic.WaterPlates then
				waterChosen.Part.Transparency = 0
				local move = waterChosen
				move.Parent = game.Workspace.WaterMagic.Used
				waterChosen.CanCollide = false
				if game.Workspace.WaterMagic.BARRIERSGONE.Value == false then
				game.Workspace.WaterMagic.Barriers:Destroy()
				game.Workspace.WaterMagic.BARRIERSGONE.Value = true
				end
			end
			end
		end
end

Add Wait() ?