Top [2021] 10 Best Reef Sumps For Saltwater Aquarium, Reef Tank

It is exciting to have an aquarium because you can enjoy your underwater world without fear.

Reefs are perfect for those concerned about keeping fish alive. If you want a marine aquarium, your best bet is to get the Best Reef Sumps to keep things clean and fresh.

Comparison Table

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Top Performance
Eshopps RS-75 Reef Sump
IceCap 48XL Reef Sump

There are many reef sinkholes on the market. Finding the right one is a challenge, but this short guide will certainly help you.

If you’re planning to install or upgrade a reef aquarium, you’ve heard of filter basins and shelters. But do you know what these terms mean?

A filter bowl can be a shelter, but a shelter is not really a filter bowl.

Well, there are many ways to make them all, but let’s start with a brief history of filter sinks and shelters. The original filter basins are primarily designed for biological filtration.

A sump is the life support system of a healthy seawater aquarium. Some hobbyists may start with a filter canister and stick to the rear gear, but modern saltwater aquarists choose to use a catch basin for many beneficial reasons.

Seawater aquariums are made of durable acrylic and contain all the space needed to house mechanical, chemical and biological filtering equipment. Most manufacturers offer a range of products suitable for beginners and advanced hobbyists, giving all aquarists the option to install a sump.

The sinks fit under the main screen allowing all your equipment and cables, including heaters, to be tucked away, resulting in a cleaner and tidier aquarium screen. One of the advantages of using a sump is that it increases the water volume, improving gas exchange and oxygenating the water.

Today, let’s talk about what an aquarium crate is, what a shelter is, then take a look at the Best Reef Sumps available to buy with ease.


What Is a Reef Sump?

Before you buy a reef charter, you need to know what it is. A sump is a container that goes behind or under an aquarium. It holds the water and gives you a place to store the equipment the system needs.

A reef crate can be made from acrylic and glass. It can also be made from food-safe plastics or feed troughs. The chosen material depends on the available space.

You usually need a glass or acrylic tank if the sump has to go under the aquarium. If the sump is in the basement or has a lot of space, storage tanks are suitable. The type of container and the receptacle must be taken into account.


Benefits of a Best Sump for Reef Tank

A reef tank crankcase has many benefits. It helps to know the benefits to understand why you need a catcher.

Contamination in the tank accumulates in the water. A container slows down that problem and increases the total water volume. The container also skims over the water surface, giving you clear water.

Sinks also work well for lowering the water temperature by up to two degrees Fahrenheit. This can help your reefs thrive and grow.

The crankcase also hides your equipment. These can be protein skimmers, heaters and monitoring probes. You can also move more equipment into the bin and out of the viewing area.

With a sump you get more consistency with water levels. The display tank ensures the correct water level regardless of the time. Evaporation takes place in the crankcase.

Most aquariums require additives to help the water. You can pour the additives directly into the receptacle. This allows the chemicals and RO / DI water to be mixed well before entering the tank.


Top [2021] 10 Best Sumps for Your Reef Tank

Finding the right sump for your reef tank can be a challenge. Sometimes it helps to have a visual aid. The table below presents a variety of information so that you can make an informed decision.


Best Reef Sump Reviews

1. Pro Clear Aquatic Systems Freedom Reef Sump

 Best Reef Sumps

The Pro Clear Aquatic Systems Reef Sump is available in four sizes: 100, 200, 300 and 400 gallons. It is designed to work well in salt water systems. It is easy to use and inexpensive to maintain.

Includes dual inlet ports for efficiency. It also has muffler tubes that eliminate bubbles and suppress noise. It also diffuses the flow of water to prevent debris from passing through.

The Pro Clear Aquatic Reef Sump also has water retention with a foam block on the back. This will help remove bubbles before the water goes to the return pump.

The receptacle also comes with wire clamps, a probe holder and a dispenser holder. The crankcase also has bulkhead couplings, flexible hoses, and 4-inch Micron bags.

All consumers who have tried this product have been raving about its effectiveness. However, the upper chambers may be slightly wider.

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2. Eshopps RS-75 Reef Sump

 Best Reef Sumps

The Eshopps RS-75 collection tray is suitable for tanks up to 75 liters. The dimensions are 45 x 30 x 40 cm. The return pocket is 3.5 “x9.5” and the Skimmer compartment is 8 “x9.5”.

This reef crankcase offers plenty of room in the sump area to store your gear. The kit can include pumps, skimmers and other devices for your aquarium. It also has a prefilter sponge that keeps air bubbles and debris out of the pump.

This collector has an open-top design, making it easy to access for maintenance. The Micron bag is also easy to remove.

This reef cart is suitable for reef and seawater aquariums. Each sump has a lid, 1-inch baffle, square foam, 300 micron bag, and 90 cm flexible hose.

You can quickly add other aquarium accessories. You also get more water capacity to keep the tank stable.

Many consumers claim that this product is suitable. However, what they do with the return zone was a bit bigger.

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3. IceCap 48XL Reef Sump

 Best Reef Sumps

The IceCap 48XL collector is made for today’s reef aquarist. It is designed to meet all your needs and measures 48 “x23.5” x16 “in length.

The crankcase is well suited for 300 gallon tanks. However, it is suitable for tanks up to 350 liters.

Includes a 2.5 cm double drain and two 10 cm filter sock holders. The fresh water tank holds 15 liters of water. It also has a 24 “x14.8” skimmer section.

The crankcase exceeds your expectations due to its practical design. It is also built with amazing attention to detail and gives your home a more aesthetic appeal.

The modern catcher has a spill design and compartment covers. It is very quiet while running. Includes adjustable baffles and probe holders to meet your filtration needs.

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4. Windridercreations 50 Gal Refugium-Sump

 Best Reef Sumps

The Refugium Sump from Windridercreations includes two pairs of socks and measures 45 “x15” x15 “in height. It also has four chambers, three baffles and two baffles. It is designed with a 50 gallon sump and offers a wet-dry aquarium filter function.

The inlet chamber is 20 inches, allowing for large sock and skimmer options. The escape room is 18 “and contains a 10” wall. The third chamber contains a 10 cm media label track.

The return chamber is 15 cm wide. It is designed to fit most internal sump pumps.

Many consumers are happy with the product and claim that it works very well. They also say that the finish is beautiful.

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5. Trigger Systems

 Best Reef Sumps

Trigger Systems is an American manufacturer of filter basins, automatic filling and dosing systems (ATO).

Acrylic sinks are assembled by hand using high quality acrylic and precision welding methods.

Sinks from Trigger Systems have rounded corners that increase the strength of the seam. The beautiful color options (ruby, sapphire, crystal, emerald and amethyst) look great under the reef aquarium.

The collection box has adjustable partitions, making the collection box easier to function as a shelter. The height of the water in the skimmer area can be adjusted. You can use filter socks or foam filter blocks to remove particles.

Trigger Systems’ sump trays are pre-drilled to add an automatic filling system.

These collectors are available in a wide range of sizes, from the tiny 18 â€bucket to the monstrous 44†Triton collector.


  1. Exceptional craftsmanship.
  2. Lots of size and color options.
  3. Modular design makes customization easy.
  4. Silent operation.


  1. No.
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6. CPR AquaFuge2 Hang-On Refugium

 Best Reef Sumps

If you’re looking for a basic HOB shelter or can’t fit one under your tank, the AquaFuge 2 deserves a look.

The AquaFuge 2 provides an isolated safe zone for live foods such as copepods and amphipods to feed SPS and LPS corals along with fish in the reef tank.

With the optional LED light you can grow macroalgae in the hanging drain. The internal baffle system prevents sand and live food from being flushed out of the chamber.

The shelter comes with a Rio submersible pump, making it a plug and play setup. The AquaFuge 2 is available in three sizes.

Small: 33 x 4.5 x 30 cm
Medium: 48 x 4.5 x 30 cm
Large: 25 “x 4.5″ x 12 ”


  1. Simple COOKING PLATE design.
  2. Including water pump.
  3. Multiple units can be used in large aquariums.


  1. LED light not included.
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7. Aqueon ProFlex Sump

 Best Reef Sumps

The Aqueon ProFlex series of three-chamber bins are modular, which means you can adjust the configuration in a number of different ways.

The basic sump design uses two 200 micron filter socks in the first chamber of the sump.

Incoming water flows through the socks to remove particles. The modular design allows you to install an optional wet-dry biological container that contains plastic bio-media. You will need to purchase the rack as an additional component and provide your own bio media. Reef aquarists don’t normally use wet-dry, but if you want one, it’s available.

For a Berlin filter, place an internal protein skimmer in the second collection chamber and pump again into the third. It’s easy to add shelter to the third room. Just add rock debris and macro algae along with a small LED light. The ProFlex collector comes in four sizes.

ProFlex 1: Holds 44-55 Gallons – Size: 21 “x 18″ x 11 ”
ProFlex 2: Holds 55-75 gallons – Size: 30.9 “X 11″ X 19 ”
ProFlex 3: Holds 65-110 Gallons – Size: 26.3 “x 17.4″ x 14.8 ”
ProFlex 4: Holds 120-210 gallons – Size: 36.9 “x 19″ x 14.8 ”


  1. Quiet operation when used as a berlin or shelter.
  2. Filter socks ensure good particle filtration.
  3. Works well as a shelter when a lamp is added.
  4. Limited Lifetime Warranty.


  1. Bad packaging has resulted in damaged panels and higher return rates.
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8. Fiji Cube Sump Kit – A Great Do It Yourself Sump Kit

 Best Reef Sumps

I’m a huge fan of building your own catcher, especially if you want to include a catcher and a shelter in your catcher as many catcher manufacturers don’t have cameras for both. This DIY shelter and shelter kit from Fiji Cube really answers the call with a high-quality shelter kit.

PetSmart and Petco’s dollar-per-gallon sales offer a great way to get an inexpensive catch basin, and the Fiji Cube kits are for a 20 or 40 gallon aquarium. This 40 gallon set fits all medium sized aquariums and is easily adjustable to set up as a traditional sump + drain setup or as a triton setup.

I really love the three filter socks design, wish they did 55 gallon and 75 gallon sump kits. Fortunately, there is a good 55 gallon Triton sump kit available from Jax.Racks for those of you with six-foot tanks.


  1. The DIY kit will help you build the Best Reef Sumps
  2. Can be configured for standard Skimmer + Fuge or Triton method
  3. Kit + dollar per gallon of tank = cheap and great value!


  1. No drain baffles, you have to cut the drain part to size
  2. Only 20 and 40 gallon aquarium sets available
  3. You have to assemble the kit yourself.
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9. Bubblefin DIY Sump – A Cheap Sump Option


 Best Reef Sumps

The Bubblefin DIY Kit is how you can make cheap. It comes with the acrylic plates to get you started. You can compose your crankcase arrangement according to your own wishes with this kit. All you need is silicone and a steady hand when attaching the baffles. It’s a full base kit with just bulkheads, but many DIYers love this option because they can build whatever they want.

The price of this kit is so affordable that it would be hard to find anything comparable in time and money by going to the hardware store and buying glass or acrylic sheets.

The only complaint I have with this kit is that it is missing a pipe bracket or bulkhead. However, you can buy them separately from other providers online. It doesn’t have the same features as the Fiji Cube kit, but the price is hard to beat.


  1. Very cheap!
  2. Configure your catcher the way you want


  1. Brackets for filter socks and baffles are missing
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10. 40†Refugium, Marine Aquarium Filter, 40 Gallon Sump


 Best Reef Sumps

The Refugium Marine Aquarium Filter is a 40 gallon catch basin measuring 40 “x15” x15 “. Includes dual 1” baffles with sock damper chamber. It also has interchangeable plates for different sizes of socks.

This reef crankcase also has an adjustable water port with an adjustment range of 5 to 10 inches. The return chamber measures 15 x 15 cm and contains four holes for the water pipe with power cables.

This product is manufactured from all laser cut parts. All parts are also ¼ â€molded material.

Unique to this product is that you can choose your own color. You must send a message to the seller to indicate whether you want blue, black, or red. However, the body is black and the partitions are white.

The product is designed for seawater aquariums, but you can also use it for freshwater tanks. You do not need to drill holes to use this product.

Many consumers have rated this product with five stars. Everyone says the quality is excellent.

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What to Put in Reef Sump?

Many people are new to reef aquariums and wonder what to put in them. Some aquarists only use a heater and skimmer in their sinks. Others like to place sand, living rocks, and other creatures.

It is best to put about four inches of sand on the bottom of your sump. You also want to include macroalgae to clean the tank in between water changes. You also have your reef.

Aquarists sometimes place Chaetomorpha in the tank as it reduces nitrates in the water. Live rock is also useful because it provides shelter for organisms and pods.

It probably also has a return pump to circulate the water.

There are no rules about what to put in your sink. However, some enthusiasts argue that you shouldn’t use activated charcoal.

Carbon depletes the trace elements needed in the aquarium. Carbon can absorb some metals in water, but it works best with organic compounds. The protein skimmers you use in the aquarium also remove trace elements in the aquarium.

So you may not always want to use carbon and other chemicals. Many aquarists believe that you should only use charcoal if the water is not clear. However, with the right reef cart you should always have clean water.


How to Setup a Reef Sump?

Once you have bought the reef crankcase, you need to set it up correctly. Otherwise your livestock will die or the water will turn brown. If you’ve already set up your tank with livestock, you can still buy a reef crate and set it up.

The tank may be on a stand that is difficult to remove. You need to buy a sump designed for your tank size. The sump should be the same length and two inches shorter than your tank.

Most wells have an area for shelter, skimmer, return zone and top compartment. The crankcase probably takes up most of the bracket space. That is the purpose of the crankcase.

If you have old equipment that you want to use with your new catcher, you should thoroughly clean and rinse it well. However, the sinks discussed here have all the tools you need.

You may want to put foam under your sump to avoid pressure points that could cause malfunction. Depending on the connections, you may need to drill holes in the bracket. Some people think it is easier to build the bracket around the crankcase.

Once the crankcase is in place you will need to install the Kent valve and connect the RO / DI function. Now you can add water to your aquarium.

While most sinks have the RO / DI system built into the sump, this may not be the Best Reef Sumps. You can place a filling container next to the collection tray. This limits the amount of fresh water that can be added at one time.

When the filling container is full, you can close the ball valve on the RO / DI unit. You can open the ball valve the next time you refill the compartment. If you choose the filling container, it should meet the needs of your tank for 48 hours.

Filling only takes 45 minutes. It is recommended not to leave your RO / DI unit on all the time. It only has to work about four hours a week.

The RO / DI unit keeps the filling section full. When the aquarium needs water, the float sensor is activated.

The fill pump adds more RO / DI water to the skimmer section. This step replenishes the evaporated water.

You need to connect the device and sensor in the return section of your tank. It can be secured with cable ties.



Finding the Best Reef Sumps crankcase is essential. Without the sump, you can suffer from dirty water, algae problems and other problems.

People think a saltwater aquarium is difficult to maintain because it can be confusing. However, with any hobby, it takes time to learn. All reefs listed here are designed for easy maintenance.

As long as you know your tank size and what you need, you can find the right reef crankcase for your needs.

Jesse B.

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