Filtered Fresh Salt Water

from $150.00
Quantity (gal.):

Filtered Seawater – Authentic Gulf of Maine Marine Water

Every gallon of our filtered seawater is hand-collected from the pristine coastal waters of Cobscook Bay (Pembroke, ME) and Passamaquoddy Bay (Eastport, ME), where the nutrient-rich tides of the Gulf of Maine provide a clean and balanced marine ecosystem. Gathered fresh by our family business, Gulf of Maine, Inc., and shipped directly to your door, this is real ocean water — not a synthetic mix. It contains the natural minerals, trace elements, and organic chemistry essential for maintaining healthy marine life.

Our seawater is available in five different filtration levels to suit your exact needs — from natural plankton-rich water for aquariums to ultra-filtered water for research and laboratory use. Each order is freshly gathered and processed to preserve the integrity of Maine’s coastal environment.

Filtration Levels:
100 Micron (Coarse): Removes large debris while retaining plankton and algae — perfect for touch tanks and feeding displays.
50 Micron (Standard): Clearer water that maintains nutrients — ideal for reef tanks and balanced aquariums.
20 Micron (Fine): Clean yet nutrient-rich — excellent for coral systems and general saltwater use.
5 Micron (Extra Fine): Highly clarified, removes most plankton and algae — best for classrooms, labs, and sensitive systems.
1 Micron (Ultra): Nearly sterile seawater — stripped of microorganisms for aquaculture, research, and controlled environments.

Key Facts:
Common name: Sea water of the Atlantic Ocean
Scientific name: Saltus waterous (just kidding!)
Locations: Cobscook Bay (Pembroke, ME) and Passamaquoddy Bay (Eastport, ME)
Seasonality: Billions of gallons available all year
Colors: Crystal-clear, bright, and blue
Size: Sold in 1- or 5-gallon quantities
Collected: By scooping motion or dipping
Quantity: By the gallon

Note: This is a natural marine product. Slight variations in salinity, clarity, and color may occur depending on tide and weather.

Filtered Seawater – Authentic Gulf of Maine Marine Water

Every gallon of our filtered seawater is hand-collected from the pristine coastal waters of Cobscook Bay (Pembroke, ME) and Passamaquoddy Bay (Eastport, ME), where the nutrient-rich tides of the Gulf of Maine provide a clean and balanced marine ecosystem. Gathered fresh by our family business, Gulf of Maine, Inc., and shipped directly to your door, this is real ocean water — not a synthetic mix. It contains the natural minerals, trace elements, and organic chemistry essential for maintaining healthy marine life.

Our seawater is available in five different filtration levels to suit your exact needs — from natural plankton-rich water for aquariums to ultra-filtered water for research and laboratory use. Each order is freshly gathered and processed to preserve the integrity of Maine’s coastal environment.

Filtration Levels:
100 Micron (Coarse): Removes large debris while retaining plankton and algae — perfect for touch tanks and feeding displays.
50 Micron (Standard): Clearer water that maintains nutrients — ideal for reef tanks and balanced aquariums.
20 Micron (Fine): Clean yet nutrient-rich — excellent for coral systems and general saltwater use.
5 Micron (Extra Fine): Highly clarified, removes most plankton and algae — best for classrooms, labs, and sensitive systems.
1 Micron (Ultra): Nearly sterile seawater — stripped of microorganisms for aquaculture, research, and controlled environments.

Key Facts:
Common name: Sea water of the Atlantic Ocean
Scientific name: Saltus waterous (just kidding!)
Locations: Cobscook Bay (Pembroke, ME) and Passamaquoddy Bay (Eastport, ME)
Seasonality: Billions of gallons available all year
Colors: Crystal-clear, bright, and blue
Size: Sold in 1- or 5-gallon quantities
Collected: By scooping motion or dipping
Quantity: By the gallon

Note: This is a natural marine product. Slight variations in salinity, clarity, and color may occur depending on tide and weather.

Bright blue Atlantic seawater.

Bright blue Atlantic seawater.

Reversing Falls, Cobscook Bay, Pembroke ME.  Rockweed (Ascophyllum nodosum) covers the rocks in the foreground.

Reversing Falls, Cobscook Bay, Pembroke ME.  Rockweed (Ascophyllum nodosum) covers the rocks in the foreground.

Tidepool Tim says,  “I would dare say that here in our part of Maine we have some of the cleanest, clearest, sea-water anywhere in the world. There are so few humans in this part of the state, we have little to no factories, few parking lots, sewer systems, or run-off. Pair that up with the flushing action of our extreme 20' tidal range and you can witness the churning, boiling, waters that ebb and flow in and out of the North Atlantic into our local bays each and every day. 

The old sow whirlpool is less than 3 miles from our offices. It's the largest whirlpool in the western hemisphere and it really mixes up the nutrients into the water column - no thermoclines here! Comes complete with a variety of planktonic organisms.  Use this water to fill your aquarium, for lab experiments, or touch tanks.”

Reversing Falls, Cobscook Bay, Pembroke ME.

Reversing Falls, Cobscook Bay, Pembroke ME.

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