| Excavation + liner + underlayment | $800-1,500 |
| Filtration system + UV | $800-1,500 |
| Pump + plumbing | $300-600 |
| Skimmer + waterfall | $300-600 |
| Plants (water lilies + marginals) | $100-250 |
| Initial koi + goldfish | $300-1,500 |
| Aerator + fountain | $100-300 |
| Koi food (Saki-Hikari) | $20-40 |
| Electricity (300-600W pump) | $30-60 |
| Dechlorinator + supplements | $5-15 |
| UV bulb (annual replacement) | $5/mo amortized |
Plug your specifics into the electricity cost calculator, the reef build budget calculator, and the water change calculator to dial in your actual costs.
Browse all aquarium cost analyses.