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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Can you send me a copy of the plumbing tips I've seen mentioned in questions/replies? I have a 90 gal. tank on order and want to be sure I have everything needed in the proper sizes prior to delivery. TIA

Asked by: statru
Sure can!BREX
Answered by: BREX
Date published: 2016-10-14

Exact dimensions 220 tankLengthHeightDepthWeightThank You

Asked by: Boot
72-7/16 x 24-7/16 x 30-1/2Empty weight is 350 lbs.BREX
Answered by: BREX
Date published: 2016-10-11

I am looking at the 120g 4ftx2ftx2ft as my upgrade , this only has one overflow correct? How thick is the glass on the aquarium all around on this size tank? What are the size of the drain line and return line? 

Asked by: Bubbaclay
Yes, one overflow. Thickness is 10 mm all panels. Lines are 1". BREX
Answered by: BREX
Date published: 2016-10-11

HiI just purchased the 125 tank with dual corner flos. For some reason I can not find the plumbing instructions and tips. Can you please send me a copy via email?Thanks

Asked by: Ryan0630
Sure, no problem!BREX
Answered by: BREX
Date published: 2016-10-07

Will a Trigger Systems Crystal 36 Sump (36 x 14 x 15") fit in the Monterey stand for the 75/90 gallon tank?

Asked by: statru
The internal dimensions are 47.000 L x 15.750 w x 31.000 h. The back has a wide open area to make it easier to manipulate sumps. BREX
Answered by: BREX
Date published: 2016-10-05

I'm planning on stepping up to a 90 gal. corner-flo, but there's only 1 corner drilled for the drain & return. I'm concerned about not having a 2nd drain in the event of a clog & the tank over-filling. Can I order 1 with a 2nd hole to install the 2nd drai

Asked by: statru
Unfortunately, no, we do not take custom orders any longer. We've never had an issue with a clog or tank over filling, so I am not sure why you have this concern. BREX
Answered by: BREX
Date published: 2016-10-04

Does the 150 Gallon Dual Corner Overflow (72x18) have one top brace down the middle, or are there two braces?  I'm trying to buy Kessil lights and three make the most sense, but only if the center isn't blocked by a brace.

Asked by: Frag1
Our old version had 1 brace; the new version now has 2 braces.BREX
Answered by: BREX
Date published: 2016-09-30

Do you guys still make the 45g 24x24 aquarium with the black rim on it?

Asked by: Mgsullivan
Unfortunately, no, we do not.BREX
Answered by: BREX
Date published: 2016-09-19
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