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Eshopps Mariner M40Eshopps
Reef aquarium

Mariner M40

by Eshopps

Mariner M40 — Eshopps' entry point into its complete Mariner reef-system line: a 40-gallon low-iron display tank on a matched marine-grade-plywood stand with an integrated acrylic sump and preassembled plumbing (return pump, skimmer and light not included).

Mid-rangePackageDrilled
Net volume
40 gal (151 L)
Dimensions
30"×18"×17"
Glass
10 mm
Drilled
Yes
est. from$1,699
Package includes
Furniture
Cabinet
Filtration
Sump
Plumbing

Items included with the tank. Sump fit is treated as auto-pass when building with a package tank.

The full sheet — every number we check a build against.

Dimensions
L × W × H
30"×18"×17"
Volume
Net (display) volume
40 gal (151 L)
Gross volume
54 gal (204 L)
Glass
Thickness
10 mm
Filtration
Drilled
Yes
Sump compatible
Yes
What this tank locks in

Volume drives skimmer rating, return-pump turnover, and light footprint. Picking this tank sets a target of:

≈317 gph
turnover
rated for 59 gal
skimmer rating
covers a 30.0" footprint
lighting footprint

We'll check every part you add against these targets.

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Frequently asked

What are the key specs of the Eshopps Mariner M40?

Net volume: 40 gal (151 L). Dimensions: 30"×18"×17". Glass: 10 mm. Drilled: Yes.

How much does the Eshopps Mariner M40 cost?

The Eshopps Mariner M40 starts around $1,699, though prices vary by retailer — see current offers on this page.

What equipment do I need for the Eshopps Mariner M40?

Based on its volume and footprint, the Eshopps Mariner M40 calls for a return pump rated ≈317 gph, a skimmer rated for 59 gal, lighting that covers a 30.0" footprint. Add it to a build on ReefPicker to see every matching part checked against it.