Corner-Flo Pre-Drilled Glass Aquariums

We offer corner-flo and pre-drilled aquariums in a variety of sizes.
  • We offer corner-flo and pre-drilled aquariums in a variety of sizes.
  • 200 Gallon Corner-Flo Pre-Drilled Glass Aquarium
  • 250 Gallon Corner-Flo Pre-Drilled Glass Aquarium
  • 300 Gallon Corner-Flo Pre-Drilled Glass Aquarium
  • With one of our deep dimension Corner-Flo glass aquariums and tanks, you'll enjoy great circulation.
Product No. NV97003
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Corner-FloTM Pre-Drilled Aquariums combine Marineland aquariums with the latest advanced-design water-flow technology.  Ideal for freshwater and saltwater applications. 

  • Plumbing kit included with each aquarium 
  • Distortion-free glass  
  • Silicone sealed to prevent capillary action and leakage 
  • Lifetime limited warranty on all Corner-Flo glass aquariums 

Engineered to deliver perfect circulation and maximize water flow to the main filter system, the Corner-Flo eliminates “dead zones,” while minimizing flow noise. Water is drawn from the surface and bottom levels at an unprecedented rate of up to 700 GPH, providing the ultimate in circulation efficiency, and fishkeeping success.

A complete plumbing kit is included with each pre-drilled Corner-Flo aquarium and is designed for efficient water collection, filtration, and distribution in this easy-to-install assembly. Plumbing kit contains: All necessary bulk-head fittings, drain, return pipes, and dual Loc-Line® outlet nozzles. 

Double Corner-Flo aquariums include two plumbing kits, one for each Corner-Flo unit.  

Additional plumbing accessories may be needed for your external filtration unit. See manufacturer’s directions for further details.  

  • Matching glass canopies available
  • Many Marineland lighting options available  
  • Most rectangular aquarium sizes 75 gallons and up 
  • Cube aquariums available with Corner-Flo 
  • Curved front aquariums available with Corner-Flo 
  • Deep Dimension Aquariums available with Corner-Flo 


Stands are available for Corner-Flo Aquariums in the Majesty, Newport, Heartland, and Monterey designs.  More about these stands can be found on the links to the right.

Corner-Flo Pre-Drilled Glass Aquariums is rated 3.2 out of 5 by 5.
Rated 5 out of 5 by from Great customer service I bought a 150 gallon with overflows. The store new everything about the tank so that was helpful. I had a small problem with the tank and wrote a review about it. Marine land contacted me and offered to,,, then did take care of my problem. I've since moved to a smaller home but have 3 marine land tanks. Two 75 gallons and a 30 I made into a dump. I will only buy marine land tanks. Except the horse trough that's part of my sump but even then for a few extra dollars I could've bought another 75 gallon that would take less space in my closet.
Date published: 2016-09-17
Rated 1 out of 5 by from Bad product poor construction Do not buy ....I have a 75 gallon reef ready tank that hasn't even been running for 2 yrs and now the seals on the inside are failing.lots of time and money is in this tank and now I have to fihire out what to do because there tank is failinh
Date published: 2016-07-10
Rated 1 out of 5 by from Do not buy !! Asking to get a cloged drain I bought the 150 gallon tank and was told it has a one in half inch drain but really it is a one inch drain !!! Right before the bulk head it has a reducer on it that goes to one inch , Therefor you are not getting enough gph if you want a nice reef tank and asking for something that can fit down the drain to get clouged when it reduces !!! - like snails or a fish that's dead or alive that makes its way over yes unlikely but why take the chance and why do they claim it has a 1 in a half inch drain when they don't
Date published: 2015-11-05
Rated 4 out of 5 by from Great tank But they stop making the corner flo on the back of the tank which is a problem for me so I may have to go with AQueno tank
Date published: 2015-07-03
Rated 5 out of 5 by from Awesome tank at an awesome price! I recently purchased the 125g dual corner overflow glass aquarium with black silicone. While I've not installed the tank yet (building a stand), I have to say that the quality of this tank is great. The price was awesome as well especially for a dual corner overflow. The packaging was very good as well. A big, big bonus are the included Durso overflows! Well done Marineland!
Date published: 2015-04-07
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Are the glass lids for the 120 XH 30" long? Is there anyway to view the warranty terms and information? Can I use a suitably constructed custom stand without voiding the warranty?

Asked by: Lansdowb
No, they will be less than 30" long as they rest inside the frame of the tank. We do not warranty glass canopies, other than at the time of purchase. Custom stands limit the warranty to one year on the tank only, regardless of how built. We do review each case separately, however. BREX
Answered by: BREX
Date published: 2017-02-14

Got a 180. After flipping the tank back-side up to be painted, I noticed that the back plastic frame on the BOTTOM rear corners are bent out behind the overflows. Gobs of black silicone pushing it out on the back and side of the corners. Is this a problem

Asked by: Jesse77
Your pictures have been forwarded to the engineer for review. I will email you directly, once I receive a response. BREX
Answered by: BREX
Date published: 2017-02-07

what are the dimensions of the lower black trim on the 90g cornerflow, height mainly. building a custom stand and don't want the black trim to show

Asked by: tomkc
The frame height is 1-7/8". Length is 48-3/8" and width is 18-3/8". BREX
Answered by: BREX
Date published: 2017-02-01

What are the dimensions of your 75 gallon gallon reef ready aquarium ? And how much does it cost ?

Asked by: Thereeferkid
75 gallon tanks are a standard 48 x 18 x 20. We do not sell direct. Pricing will vary per your market and is dependent on what you buy with the tank. BREX
Answered by: BREX
Date published: 2017-01-30

I purchased a 150 Black Corner Flow tank, 72 x 18 with two braces. SKU 0 47497 97012 6 I want to purchase the 3 pc glass tops, but I see some indications about 2 pc 72" tops... what is the part I want?

Asked by: royreese
NV81608 is the item number of the canopy you need for your particular 150 gallon with the two braces. BREX
Answered by: BREX
Date published: 2017-01-24

Do you have a 36" x 36" standard glass aquarium with a corner-flo? The Deep Dimension is nice, but out of my current price range.

Asked by: JG77
Unfortunately, no. There is no such thing as a standard 36" wide tank. Standard sized tanks are no wider than 24". The Deep Dimension is the only one that I am aware of on the market, other than custom made. BREX
Answered by: BREX
Date published: 2017-01-17

What is the height of the Monterey stand for the 120 48x24 NV977008 ?

Asked by: Wizard
34.5" BREX
Answered by: BREX
Date published: 2017-01-16

What options do you have for 60" tanks that are reef ready with corner over flow(s)?

Asked by: Banty
We have a 120 XH that is 60-1/2 x 18-1/2 x 25-5/16 and item number 97010, and a 250 gallon Deep Dimensions tank that is 60-1/4 x 36 x 27-1/4 and item number 97037. BREX
Answered by: BREX
Date published: 2017-01-11
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