Be nice if you took the capslock off please IOU1, we aren't deaf!
The water in a pond will go green if too much sunlight or too many nutrients. Ways to help keep the water clear are to make sure about 2/3 of the surface area is covered in plants. Shade cloth over the pond helps too. It is almost time to start feeding pond fish again (I hope). Goldfish semi hibernate once the water temp drops below 10C so do not eat during this time. Once the lowest temp overnight doesn't drop below this, it is time to slowly start feeding small amounts again.
Wind movement will do nothing for or against algae (or anything else), unless your pond is hit by a tornado. In which case you will not need to empty the pond as it will already be so.
You should NOT need to use tablets to keep a pond clean. How large is it? A filter may help.
The fish will spawn in the summer months.
If the tablets are to kill algae then they will also affect plants as plants are just a higher form of algae (or algae is a lower form of plant )
You can try the barley straw trick too. The Feb '04 Aquarium World had instructions in it about how it works and how much you need.
Whitecloudes and leoparfish will survive warmer months in the pond but for many areas it gets too cold in winter, although covering the pond would help. The trouble with both these species is they are small and hard to see from above so tend to disappear when viewed from above in a pond situation. Leopardfish particularly are hard to see in a pond because of their colouring.