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Filtering a Koi Pond Under 3,600 Gallons

Use pond size, fish load, turnover, and service access to narrow the filtration options before you buy.

Take the Pond Audit
SMF1800 or SMF3600

Suggested Starting Point

SMF1800 or SMF3600

This project path is organized around the result first: pond volume, fish load, head height, plumbing run, service access, and realistic turnover before brand-name browsing. It is a starting point, not a substitute for manufacturer instructions or installer judgment.

1. Size the waterUse actual gallons, not guessed surface area. Larger fish or heavy feeding raises the filtration target.
2. Size the liftHead height and long pipe runs reduce delivered flow, especially on waterfalls and remote filter pads.
3. Size the serviceChoose equipment that can be cleaned and maintained where it will actually sit.

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Need a second set of eyes?Use the Free Pond Audit so Tony can review what you know, research what is missing, and help you narrow the next step.
Build around the system.Choose the filtration or kit path first, then add bacteria, UV service parts, food, and seasonal care products.

Editable sizing note

Add current SMF1800 or SMF3600 product notes, photos, A-Eco product notes, or product links for koi ponds under 3,600 gallons.

Not sure where to start? Ask for help ->