Natural Pond Cleaner, 250ml, Clarifier for Fish Ponds, Safe for All Aquatic Life Including Koi, Pond Water Clarifier Treats Up to 250,000 Gallons

What if you use to much?

Does this product work for koi ponds in full sun?

In several days my 4 week treatment will be completed and my 3' deep 800 gallon pond is maybe 30-40% more clear. Green algae on rubber sides. Advice?

How long will a 124 ml bottle last me dor a 5000 gallon pond?