Corner-Flo™ Rectangular Aquarium - Black

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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  • Ideal for freshwater and saltwater – compatible with a wide variety of lighting, sumps and canister filters
  • Scratch-resistant, distortion-free glass
  • Front section of the Corner-Flo™ is removable for easy cleaning
  • Top and bottom plastic frames – silicone-sealed top frame to prevent capillary action
  • Engineered to deliver ideal circulation and maximize water flow to the filter system
  • Plumbing kit with all necessary bulkhead fittings, drain and return pipes, and dual Loc-Line® outlet nozzles included (additional plumbing accessories may be needed for your external filtration unit – see manufacturer’s directions for further details)
  • Double Corner-Flo™Aquariums include two plumbing kits – one for each Corner-Flo™ unit
  • Limited lifetime warranty

Glass thickness

I just bought a 125 gallon corner overflow tank. Can you pleases tell me the glass thickness on the sides of the tank?
Asked by: Fishstix184
I believe I answered this question earlier this week. They are 10 mm. BREX
Answered by: BREX
Date published: 2015-05-28

Glass thickness

I just bought a 125gallon corner overflow tank. What is the glass thickness on the sides of the tank?
Asked by: Fishstix184
10 mm BREX
Answered by: BREX
Date published: 2015-05-27

Weird leak

I recently bought a 90 gal. corner flo unit. I did a 1st leak test yesterday, and got a weird leak. I filled the overflow section with water and it started leaking on the display side, through the side-bottom silicon joint. no leak outside the tank... What should I do? I Can send a pic or video if you want...
Asked by: Jeff222
Please email us directly with a detailed description of the leak and a picture. BREX
Answered by: BREX
Date published: 2015-05-26

125 gallon top plastic frame front to back beams, is there one in the middle or two?

Trying to determine best reef tank lighting options.
Asked by: Mjlundy
There are two center braces. BREX
Answered by: BREX
Date published: 2015-05-26

Corner-flo tank walls

Can I order a replacement corner-flo overflow wall for my 90 gallon tank ? and if so where can I order that ?
Asked by: Dmoller
No, that is not sold separately. You would need to order a whole new kit through your local fish store. We do not actually sell these direct through retailers, etc, they are by special order through the store. BREX
Answered by: BREX
Date published: 2015-05-15

What i the recomended gate heighth in a corner flow?

Should the adjustable gates be one inch or 2 under the water level?
Asked by: Brucey
We are uncertain as to what gate you are referring to as we do not have anything in them termed a "gate". Water level in the tank should be to just below the top frame. Water in the overflow will be just below the siphon break. BREX
Answered by: BREX
Date published: 2015-05-04

Corner flow pre-drilled, Question

Hi... I want put Marineland aquarium tank with one corner flow pre-drilled, 150 Gallon 48x24x30. In a wall Question: Could I order this tank, with corner flow pre-drilled, on the right side corner? Thanks
Asked by: GabrielSonico
No, as we do not do custom orders. BREX
Answered by: BREX
Date published: 2015-05-04

Righty Tighty, Lefty Loosy?

Has been a while since I did the plumbing on my cornerflow 65. I am now moving and need to take it apart. Before I go and break it I wanted to confirm that the included bulkheads and plumbing follow right tight and left loose. Thanks for your assistance.
Asked by: AMejia1976
Yes, righty tighty, lefty loosy. :-) BREX
Answered by: BREX
Date published: 2015-05-04

Is there Monterey stand for the 36" 18" 24" corner flow tank? And is Monterey stand pre-drilled to fit with corner-flow tank?

I only see 36" 18" stand available from Majesty. But, I want a solid top stand. So is the Monterey come with a 36" 18" size also? Second question, is there pre-drilled hole on the Monterey stand top to fit with the corner-flow tank?
Asked by: rgc588
No, there is not. The smallest size it comes in is 48 x 18. BREX
Answered by: BREX
Date published: 2015-04-24

120 gallon dual corner over flow - can it be used with dual canister filters?

I am looking at purchasing your 120 gallon dual corner over flow tank. Can this tank with your included dual plumbing kit - be used with dual canister filters? Can you send me the plumbing information along with the specs, layout, how to plumb it, etc.? Thanks!
Asked by: Greg1
I will email the corner flow plumbing tips, etc, to you directly. We do not have anything written down for using canisters, however, we have several colleagues here who have set up larger corner flo tanks with canisters, and this works well. It is an easy transition to vinyl tubing from PVC using a barbed hose fitting available at any plumbing supply place or Home Depot or Lowes. They make them in all sizes so easy to find. I would suggest metal hose clamps as well, to be safe. You will need to remove the entire drain pipe assembly from the cornerflo unit and just leave the open bulkhead at the bottom for the drain. The cornerflo compartment will in essence act as a sump, and the water level there will fluctuate with evaporation, etc. I would maintain at least 10 inches or so of water in there. The return can be plumbed using barbed hose connections and all the return plumbing we provide. BREX
Answered by: BREX
Date published: 2016-02-09

Dimensions and included

What are the dimensions of a 125 gal with 2 pre-drilled corner overflows, what is included with the tank? Can I buy it from you or do I go to a dealer?
Asked by: Maineman
72-9/16 x 18-23/32 x 22-1/8 Nothing is included with the tank besides the overflows and the plumbing for the intake. Return plumbing you must purchase separately. We do not sell tanks directly, you must go through a dealer. BREX
Answered by: BREX
Date published: 2015-04-15

corner flo

Can I also get plumbing details for the 150H aquarium?
Asked by: m2j3m
Plumbing details are the same for all of our tanks, but I will email them to you. BREX
Answered by: BREX
Date published: 2015-04-07

125 gallon (6' version) built-in overflow(s) plumbing details

Planning a new saltwater setup with 125 gallon (6") with built in overflow(s), would like to see plumbing details.
Asked by: MikeinIllinois
Emailed to you directly. BREX
Answered by: BREX
Date published: 2015-03-30

Do the center braces of a 180rr need to be supported by the stand?

I am having a steel stand built by a professional welder. I need to know if the two braces running from back to front in the center of the lower frame need direct support? Or, is the perimeter trim support sufficient? Thank you.
Asked by: Fishphi784
Our stands primarily provide support around the perimeter. Braces that may run across the stand are mainly to keep the stand secure, not the bottom glass. The glass thickness is designed to support the water and substrate without center support. Custom stands need to be flat and level. The steel should support the weight ok, but depending on the members used and the design, it may still be able to twist under the weight of the water. It doesn’t matter how flat and level it is without the water. It’s what happens after filling that can cause a leak. BREX
Answered by: BREX
Date published: 2015-03-26

45g Corner Flow

Is the 45g tank listed in the coner flow manual actually a corner flow, or is the overflow in the middle of the back pane?
Asked by: CornerFlowQuestion
We do not make an overflow tank that small any longer. The smallest is 65 gallons. All overflow tanks have corner overflows. We used to have custom made tanks, and we did have some other cubes, but they are no longer available. BREX
Answered by: BREX
Date published: 2015-03-25

do you make a right hand corrner overflow

Hello, I was wondering if you make a righ side overflow, I do not see it anywhere on the site. I am looking for a 90 gallong right side overflow for a saltwater set up.
Asked by: Lilshifter
No, they are on the lefthand side in all of our tanks, unless they have a dual overflow system. BREX
Answered by: BREX
Date published: 2015-03-30

Plumbing Guide for the 90 corner overflow tank

Could I get the guide sent to me also please?
Asked by: Ephor
Of course.... BREX
Answered by: BREX
Date published: 2015-03-17

Plumbing Guide for 90 corner overflow tank

Can you send me the guide please?
Asked by: SoSystems
Sent. BREX
Answered by: BREX
Date published: 2015-03-16

125 gal reef ready specs

Could you send me the specs for the 125 reef. Ready tank. Dimensions, weight and location of the drilled holes. I'd also appreciate directions and parts list for the plumbing. I just ordered this tank from my local fish store and need to get stand Configured correctly prior to taking delivery.
Asked by: Lynn52
72-9/16 x 18-23/32 x 22-1/8, wt. 237 lbs. I will email the plumbing info to you and a diagram of the holes. Please keep in mind, custom stands limit warranty to one year. BREX
Answered by: BREX
Date published: 2015-03-11

Can you please tell the plumbing parts for a 75 gallon corner flow?

I purchased a used 75 gallon corner-flo aquarium. It had the bulkheads and return plumbing (pipe and double return nozzle), but not the drain pipe. Can you tell me what type of drain setup this aquarium use? Thank you.
Asked by: EaseE
I'll go one better. I'll send you a document on plumbing it. BREX
Answered by: BREX
Date published: 2015-03-10

I am interested in the 120g corner flo (48x24x24). Can you please send me any plumbing tips and the drawing of where the bottom holes are cut?

Asked by: Hitch
Done. BREX
Answered by: BREX
Date published: 2015-03-09

Could you email me the plumbing tips and instructions for the 75 with corner overflow/return? Thanks.

I'm going to use a flexible return hose and need to figure out what sort of barbed fitting I will need. Thanks.
Asked by: Treehugger
Sure can. BREX
Answered by: BREX
Date published: 2015-03-04

Is the 150 Gal Deep Dimension Aquarium available without predrilled holes? (36x36x?)

I'm interested in using for fresh water without overflow
Asked by: ACThomas
Unfortunately, not any longer, no. BREX
Answered by: BREX
Date published: 2015-03-02

Plumbing tips for the 150H

Can you email me the plumbing tips and diagrams for the 150 48x24x30 with corner overflow? Thanks!
Asked by: Mk98mod4
Done! BREX
Answered by: BREX
Date published: 2015-03-02

product specs and dimensions

180g deep dimension tank with two corner overflows. Could you please e-mail me plumbing tips and overflow specs. Im building my own stand and need to know where holes for overflow are drilled in bottom of tank.
Asked by: JJMCIV
Yes, we sure can. Keep in mind, custom stands limit warranty to one year on tank only. BREX
Answered by: BREX
Date published: 2015-02-26

What is the size bulkhead for the 150gallon extra high tank?

Can you also sent me more information for the 150 gallon rr tank?
Asked by: NickN
Coming via email..... BREX
Answered by: BREX
Date published: 2015-02-26

Can you email me a template diagram of the specs on the 265g with corner overflows?

I`m purchasing the 265g soon and want to start building my cabinet. I would like to know where the holes are exactly drilled at in the bottom of the tank.
Asked by: Glenn1234
I can email you a CAD drawing of the overflow holes. BREX
Answered by: BREX
Date published: 2015-02-25

Can I order a 180 tank with just one corner overflow through my LFS.

I was looking at your 180 gallon Reef Ready tank that has two corner overflows and was wondering if I could just get one over flow instead? The tank size is 72 by 24 by 24. Thank you.
Asked by: bic469focus
No. We no longer make custom tanks, unfortunately. BREX
Answered by: BREX
Date published: 2015-02-25

Corner-Flo Pre-Drilled Glass Aquariums 93 gallon cube with top black rim

I'm looking for a 93 gallon cube tank with overflow also i like it to have the top black rim..Do you have a part number for this . corner or center overflow.. if you don't have this tank with a black rim please give me a size that is close to it and part number Thanks for all your help
Asked by: guyfromunion
The only one we make is frameless. It is item NV33017. It has one overflow which is in the left back corner. BREX
Answered by: BREX
Date published: 2015-02-20

I need to know where to obtain the parts for the corner overflow on my 150xh.

Asked by: Poobah
You would need to purchase an entire overflow kit through a local reef/marine store. Individual pieces are not available separately. You might also try www.marinedepot.com and www.drsfostersmith.com. BREX
Answered by: BREX
Date published: 2015-02-18
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Approximate dimensions listed are width x depth x height.
97002 65 gal (36" x 18" x 24"), 1 overflow 
NV97003 75 gal (48" x 18" x 21"), 1 overflow 
NV97005 90 gal (48" x 18" x 24"), 1 overflow
NV97007 110 gal (48" x 18" x 30"), 1 overflow 
NV97008 120 gal (48" x 24" x 24"), 1 overflow
97010 120 gal X-high (60" x 18" x 26"), 2 overflows 
97011 125 gal (72" x 18" x 22"), 2 overflows 
97012 150 gal (72" x 18" x 27"), 2 overflows 
NV97009 150 gal X-high (48" x 24" x 30"), 1 overflow 
97013 180 gal wide (72" x 24" x 24"), 2 overflows 
97014 220 gal X-high (72" x 24" x 30"), 2 overflows 
97015 265 gal (84" x 24" x 30"), 2 overflows