Skip to content

Free Shipping In Canada +$119.00

Collection: Reservoirs

Automation needs somewhere to draw from. Top-off reservoirs hold the fresh water an ATO pumps into the tank and come in acrylic at two, five and nine gallons with lids and quarter-inch tubing ports. Dosing containers are the narrow ones, sized in liters and built to stand beside a doser; several include a low-level sensor wired to a matched pump, and one dual-chamber model handles both halves of a two-part routine. A gravity-fed bottle covers small tanks with no power required. Acrylic reacts with some additives, so read the product page before filling one.

Compare (0/5)

9 products

Bubble Magus Auto Top-Off Reservoir - 9 Gallon

Dosing Reservoir

Bubble Magus Auto Top-Off Reservoir - 9 Gallon

Regular price $163.80
Sale price $163.80 Regular price
Bubble Magus Auto Top-Off Reservoir - 5 Gallon

Dosing Reservoir

Bubble Magus Auto Top-Off Reservoir - 5 Gallon

Regular price $134.40
Sale price $134.40 Regular price
Kamoer Dosing Container

Dosing Reservoir

Kamoer Dosing Container

Regular price $19.95
Sale price $19.95 Regular price
Bubble Magus Auto Top-Off Reservoir - 2 Gallon

Dosing Reservoir

Bubble Magus Auto Top-Off Reservoir - 2 Gallon

Regular price $86.80
Sale price $86.80 Regular price
Seaside Aquatics Dosing Container - 5.0 Liter

Dosing Reservoir

Seaside Aquatics Dosing Container - 5.0 Liter

Regular price $91.00
Sale price $91.00 Regular price
Seaside Aquatics Dosing Container - 2.5 Litre

Dosing Reservoir

Seaside Aquatics Dosing Container - 2.5 Liter

Regular price $56.00
Sale price $56.00 Regular price
Seaside Aquatics Dosing Container - 1.5 Litre

Dosing Reservoir

Seaside Aquatics Dosing Container - 1.5 Liter

Regular price $43.40
Sale price $43.40 Regular price
IceCap Gravity ATO

Dosing Reservoir

IceCap Gravity ATO

Regular price $29.50
Sale price $29.50 Regular price
Neptune DDR DOS Dual Reservoir

Dosing Reservoir

Neptune DDR DOS Dual Reservoir

Regular price $346.83
Sale price $346.83 Regular price $376.99

Choosing a capacity

Work backward from evaporation. Measure what the tank loses in a day, multiply by the number of days you want between refills, and take the next size up. Placement counts too: a low, wide reservoir slides under a stand more readily than a tall one, and a pump with sufficient head can draw from a container in a completely different room.

Types stocked

  • Acrylic top-off reservoirs at two, five and nine gallons with lids and quarter-inch connections.
  • Slim dosing containers at 1.5, 2.5 and 5 liters.
  • Containers with an integrated low-level sensor that reports to a matched dosing pump.
  • A dual-chamber reservoir sized for two-part dosing with optical level reporting.
  • A gravity-fed bottle that tops off a small aquarium without electricity.

Getting the most from one

Fill top-off reservoirs with reverse osmosis or deionized water only, since anything else concentrates into the display over time. Leaving the lid in place slows evaporation out of the reservoir itself. Check compatibility before storing supplements in acrylic, because organic carbon solutions and alcohols can craze the material and product pages call out the combinations to avoid. When a container develops residue around the cap, empty and rinse it rather than topping up over it. Email info@jlaquatics.com to match a container to a specific pump.

J&L Aquatics was formed in December 1997

Our business was started from our love of the aquarium hobby. We at J&L Aquatics felt that the Canadian aquarist should have the option to purchase top quality supplies, equipment and livestock other than the generally over priced local retail stores.