SKU: 67832340368

Red Sea Reefer G2+ 525 Aquarium

Sale price$28575.00 Regular price$31750.00
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Description

Red Sea Reefer G2+ 525 AquariumRed Sea Reefer G2+ 525 Aquarium Red Sea Reefer G2+ 525 Aquarium is designed for hobbyists to create and manage their ideal reef tank with advanced filtration, water management, and an auto top off system. The REEFER G2+ series of reef ready aquarium systems comes in a huge variety of sizes, includes top of the line infrastructure, filtration, water management and the ReefATO+ system. It is designed to allow hobbyists complete freedom of choice to use

Red Sea Reefer G2+ 525 Aquarium

Red Sea Reefer G2+ 525 Aquarium is designed for hobbyists to create and manage their ideal reef tank with advanced filtration, water management, and an auto top-off system.

The REEFER G2+ series of reef-ready aquarium systems comes in a huge variety of sizes, includes top-of-the-line infrastructure, filtration, water management and the ReefATO+ system. It is designed to allow hobbyists complete freedom of choice to use all their preferred or existing hardware in building the reef tank of their dreams.

G2+ Features

  • Includes a 3-in-1 ReefATO+ auto top-off system with temperature monitor and external leak detector
  • Rimless ultra-clear, beveled-edge glass with increased thickness
  • Extra-fortified plywood marine-spec laminated cabinets (with additional aluminum “floating tank” supports on REEFER 625 G2+ models and bigger)
  • Dual side-facing return pump outlets for better water distribution (On REEFER 350 G2+ models and bigger)
  • Large central overflow box to hide piping, with a large surface skimmer with removable weir comb for easy cleaning
  • Silent downflow system with enlarged rectangular inlet to reduce turbulence
  • Assembly-ready piping now with extra bulkhead connectors in both Metric and USA sizes for customized setups
  • New and improved high-precision valve on the downflow pipe for easier flow regulation and near-silent operation
  • Professional REEF-SPEC sump, including:
    • Mechanical filtration media compartment complete with micron filters and filter cups
    • Adjustable height skimmer chamber
    • Bubble trap
    • Plug & play ready for ReefMat 500 or 1200 Auto Filter Roller (sold separately)
    • Additional chamber for chillers, controllers, or other equipment (on most models)

New to the G2+ -- 3-in-1 ReefATO+

Every REEFER G2+ model includes a ReefATO+, an exceptionally reliable and smart auto top-off system. The ReefATO+ is more than just an ATO-- it also includes an accurate temperature monitor and external leak detector, coupled with a smart controller that connects to the ReefBeat ecosystem. 

  • Fully-featured online digital temperature monitor accurate to 0.1 degree
  • Reliable leak detector with audible alarm
  • Slimline multi-input titanium probe water level sensor
  • Strong magnetic corner mounting bracket
  • Precise water level monitoring
  • Built-in safety shutoffs under the following scenarios:
    • Sensor isn't connected
    • Pump runs dry
    • Leak is detected 
    • Pump runs longer than normal
  • Track water level and temperatures in the ReefBeat app
  • Powerful, quiet, and slim 1.8" diameter pump that fits in most ATO reservoirs
  • ReefBeat connected smart controller included

Extra-fortified Glass and Marine-Spec Cabinets

The G2+ series of REEFER aquariums are rimless and constructed from ultra-clear, beveled-edge glass with an increased glass thickness of up to 19mm. These strong glass tanks sit atop newly fortified cabinet stands made of plywood and with Marine-Spec, water-resistant lamination. Each cabinet stand follows the contours of the aquarium glass, with the larger REEFER G2+ models featuring an additional “floating tank” aluminum support. Adjustable leveling feet & stainless steel hinges ensure a lasting and durable stand for your dream aquarium.

Improved Water Management & Plumbing

Up top, the G2+ REEFER systems employ a large overflow box with dual side-facing return pumps for optimal water circulation and increased surface skimming. The overflow box includes a lid which hides plumbing components, as well as easily-removable weir combs for quick cleaning and improved surface skimming. Water then exits from the overflow box and travels down an enlarged and rectangular inlet to the downflow pipe, allowing for reduced turbulence & quieter operation. All G2+ models also include a high precision valve on the downflow pipe, allowing for simple regulation to further tune your flow.

Reef-Ready Sump– Now ReefMat Compatible

As with the previous generation of REEFER, the G2+ sump includes a mechanical filtration compartment complete with micron filter sock(s) and filter cup(s) to keep large pieces of debris and detritus from clogging pumps and other pieces of equipment. This chamber can be alternatively used to house a ReefMat 500 or 1200-- no modifications required! Water flows from the filtration chamber into the adjustable-height skimmer compartment, where the water will be kept at a steady level to aid in the best performance for your choice of skimmer, or any other filtration components that you choose to include. The water will then flow through the final bubble trap and into a chamber where the return pump (not included) can be placed to pump water back through the Reefer tank's return plumbing.

3+2 Extended Warranty Plans

All REEFER aquariums include a standard 2-year warranty. Register your brand-new Red Sea system within 90 days of the original date of purchase and turn your standard 2-year warranty into 3 years at no extra cost. 1-2 year extended protection plans are also available for purchase through Red Sea's warranty registration page. That's up to 5 years of worry-free protection!

Specifications

  • Display Tank Dimensions - 59"L x 22"H x 23.6"W
  • Display Tank Volume - 112 Gallons
  • Total System Height - 56"
  • Total System Volume - 143 Gallons
  • Sump Volume - 31 Gallons
  • Front Glass Thickness - 5/8"
  • Side Glass Thickness - 5/8"
  • Bottom Glass Thickness - 5/8"
  • ATO Pump Power - 6-10W
  • ATO Pump Max Flow - 75 gph
  • ATO Pump Max Head - 8ft

NOTE: The Deluxe models include 3x ReefLED 115 & Mounting arms & ATO System 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 67832340368

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Hambster
Carnegie, US
★★★★★ 5
Very functional, and lots of fun for little kids. Gentle enough for their skin, too.
Color: Frog&strawberry
These are so awesome. Two of them come in a box. There's a frog one and a strawberry one. They are inside individual zip lock bags inside the box. There's a scrubbie/loofa (not a natural one, just the plastic webbing type) on one side, and cloth-covered plushie/sponge on the other side that is the strawberry/frog. My granddaughter loves them. She can use them to clean and scrub herself, just like a big girl, but with a fun sponge/scrubby that she likes, so she always knows that there's a special one that is just hers. They absorb plenty of water and soap, and are good for cleaning their whole body. They are just the right size to fit in an adult hand, so a little big for solo use by a little hand, but there are plenty of bits to grab onto on either side, so it's not hard for a little kid to hang onto them. The loofah/scrubby side is well made, although it will become big and loose as those things always do if you pull on them too much. The sponge/toy side is very soft, and definitely gentle enough for a small child's skin. My only dislike is the small loop for hanging it on a hook in the shower. The little loop is just tiny and hard to separate, so it's difficult to get it onto a hook so it can hang and dry out in between uses. It would have been very easy to make the loop longer and more functional, so I'm not sure why they didn't. Other than that one, minor inconvenience, this is a great product.
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Reviewed in the United States on February 26, 2026
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RachieG
Carnegie, US
★★★★★ 5
Adorable scrubbie
Color: Turtle&bunny
Durable sponge made with quality material. Great value for price, soap lathers well and no signs of wear and tear after using for a month. Not too rough on the skin, plus you can’t beat the adorable turtle design
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Reviewed in the United States on April 15, 2026
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Customer Review
Battle Creek, US
★★★★★ 4
Super Cute! Stuffing Seems to Poke Out
Color: Frog&strawberry
These kids bath sponges are super cute! My daughter loves the strawberry one. It's soft, and well made, and doesn't irritate her skin. The size is just right for little hands, and they seem to be holding up well so far. One thing I noted is that some of the stuffing seemed to be poking out when I first opened it, but it came off easily and doesn't seem to be getting worse.
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Reviewed in the United States on March 27, 2026
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NCPrime
Phoenix, US
★★★★★ 5
Great work on the recent history of strategic studies and strategy in practice.
Format: Kindle
While not perfect, certainly one of the best works on strategy I've read recently and possibly the best work on post-1945 strategic history I've read in a while. Two main flaws or issues of contention: Strachan's critique of civil-military relations is at times lucid, but at other times appears to come slightly off the rails. Second, the books origin as a (much altered and added too) collection of articles shows through in the many areas which it doubles back on itself covering ground previously well trodden, at times this is done to build on previously mentioned ideas, at other times it seems overly repetitive. On the whole it is an excellent assessment and critique of the recent history of Strategic Studies as a field, as a historian I find many of his disciplinary critiques of the history/IR balance quite convincing, but I suppose I'm biased.
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Reviewed in the United States on January 30, 2014
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ElvenWarrior
Pawtucket, US
★★★★★ 5
Good read!
Format: Paperback
I find this book matches the recommendations for it.
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Reviewed in the United States on February 9, 2025

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