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.
Size and Shape. There are a couple of different options for liners, all of which will impact the cost to install a pond. Most permanent garden pond liners include concrete and fiberglass. These liners last a long time: 50 years or more if maintained properly.ize and Shape. There are a couple of different options for liners, all of which will impact the cost to install a pond. Most permanent garden pond liners include concrete and fiberglass. These liners last a long time: 50 years or more if maintained properly.