add clownfish & tropical fish to the list of food for penguin from mobs_fish

penguin.lua

@@ -44,7 +44,7 @@ mobs:register_mob("mobs_animal:penguin", {
 	},
 	fly_in = "default:water_source",
 	floats = 0,
-	follow = {"ethereal:fish_raw"},
+	follow = {"ethereal:fish_raw", "mobs_fish:clownfish", "mobs_fish:tropical"},
 	view_range = 5,
 
 	on_rightclick = function(self, clicker)