Neptune's years are 164.8 Earth years. Its days are 16 hours and 6.7 minutes long. Although Neptune's days are shorter than our days, its years are still longer than ours.
Most colorants will last in your pond approximately 30 days. You may have to add more pond dye before 30 days if you have execissive rainfall, run-off, a heavy out flow, or evaporation. If your colorant is fading you will visually be able to tell and should add more dye to the water.
We carry other products that will control algae during the time that your pond is maturing. Algae Fix is probably the most effective. Barley Straw and Barley Straw Extract can also be effective in improving water conditions for most ponds. Pond Dye shades the water, which limits the amount of sunlight feeding the algae.We carry blue and black dye, this is a cost-effective solution in large ponds and lakes, but it can be used in any pond. If your pond does not contain fish then Fountec is a great product to use.his type of algae cannot be totally eliminated with fish and plants in the pond. String algae, which may coat the waterfall, is a little harder to control. You can physically remove it from the pond where possible.