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

Asked by: Wizard
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

What are the actual outside dimensions of the 72x18x27 150 gallon corner overflow tank. I am building a custom stand and want to verify these dimensions, plus would like to know the location by dimensions for the two corner overflow cutouts.

Asked by: Jim Newlin
The dimensions are 72-1/2 x 18-5/8 x 26-15/16, including the frame. I will email you a CAD drawing regarding the overflows.BREX
Answered by: BREX
Date published: 2017-01-04

On the 150 gallon tank both the corner overflows and the returns are 1" pvc coming from the sump correct ? Would I keep both the 1" overflows under the stand and Y it into one 1" pipe into the sump?    FYI   "sump is in basement"

Asked by: Jaymon
We appreciate your interest in Marineland aquariums! I will email you the instructions and some plumbing tips we have printed up as they should help tremendously. And yes, they are 1", but we typically recommend one line going to each one; not installing a "y". Your flow rate to each overflow has to be 700-750 gph. BREX
Answered by: BREX
Date published: 2017-01-03

What are your dementions on your 60 gallon, corner Flo pre drilled glass aquarium. And what is the price

Asked by: Mike1984
Thank you for your interest in this product. It is 24"x24"x24". We do not sell directly; you would need to special order it through a local fish store in your area. Pricing will vary.BREX
Answered by: BREX
Date published: 2016-12-22

No, you misunderstood my question about water coming up the return pipe and hitting the inside wall of the overflow. I was referring to the air hole on the return pipe that shoots water against the interior of the overflow. Has that been addressed?

Asked by: Jesse77
I assume you mean the siphon break? No, the siphon break is still in all of our over flows, and is necessary in order to prevent your home from being flooded in the event of a power outage. If you are observing a flushing type of water movement, the issue is in the installation of the pump as the pump is probably not large enough to provide enough head. You can place a piece of filter floss in the siphon break to help eliminate the noise from proper installation.BREX
Answered by: BREX
Date published: 2016-12-12

What are the exact dimensions of a 70 gallon cube.  

Asked by: Jerry421a
30 x 30 19-3/8 were the dimensions for this tank, but we no longer make it.BREX
Answered by: BREX
Date published: 2016-12-12

I am looking for a 5 ft tank app 140 60"-24'-24" with built in overflows. Do you have anything available.One dealer on your list said they could not order a tank for me.I am looking for a tank only.thank you GARY

Asked by: REEF FAN
Thank you for your interest in our tanks, Gary! We have a 135 which is 60 x 24 x 25.5 but it does not contain overflows. Item number is 12160. We do not make one with those dimensions that has overflows as well. You do have to order through a retailer, though, as we do not sell direct. Chain stores cannot order, but definitely locally owned, and independently operated stores can order tanks through their distributors. We have 125 and 150 gallon tanks with overflows, but the dimensions are 72-9/16 x 18-23/32 x 22-1/8 for the 125 and the 150 gallon tanks come in different sizes, 48-3/8 x 24-3/8 x 31, 72-1/2 x 18-5/8 x 26-15/16, and 36" x 36" x 27.BREX
Answered by: BREX
Date published: 2016-12-08
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