diff --git a/Day-6/day6-1.py b/Day-6/day6-1.py
new file mode 100644
index 0000000..7e69f13
--- /dev/null
+++ b/Day-6/day6-1.py
@@ -0,0 +1,21 @@
+#!/usr/bin/python3
+
+# Open the file and read the one line into an array.
+fish = []
+with open('/home/jake/Documents/AoC-2021/Day-6/input.txt') as inputFile:
+    fish = inputFile.readline().strip('\n').split(',')
+    fish = [ int(x) for x in fish ]
+
+# Loop over the array decrementing and adding fish as required for 80 days.
+days = 0
+while days < 80:
+    for i in range(0, len(fish)):
+        if(fish[i] == 0):
+            fish[i] = 6
+            fish.append(8)
+        else:
+            fish[i] = fish[i] -1
+    days+=1
+
+# Print the results.
+print("Total fish afer " + str(days) + " days: " + str(len(fish)))
\ No newline at end of file