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

I am looking at purchasing your 120 gallon dual corner over flow tank long. 5' Can you send me the plumbing information along with the specs, layout, how to plumb it, etc? Also do you have a diagram that i can put on my stand to cut the wholes? 

Asked by: Roberto Toal
Yes, we can send all of that to you. Keep in mind, custom stands shorten your warranty to one year on the tank only. I will email the material to you directly. BREX
Answered by: BREX
Date published: 2016-04-11

Do you have a 70 gal cube? 24x24x30? Rimless corner over-flow?

Asked by: TheOuch
No, but we do have a 93 gallon which is 30 x 30 x 24. We also have a 60 gallon which is 24 x 24 x 24. BREX
Answered by: BREX
Date published: 2017-01-27

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.? 

Asked by: GREG1
I just emailed a document to you that should help. BREX
Answered by: BREX
Date published: 2016-04-08

CORNER FLO  150XH 48" x 24" x 30"    PIN:97009 Quick one, are any of the panels tempered glass on this tank? Would like to drill one side panel for a overflow, and yes I know it voids the warranty;) Thanks G.B.

Asked by: Ginger Beast
I'm pretty sure I answered this question yesterday. No, none of the panels are tempered, and yes, drilling voids the warranty. BREX
Answered by: BREX
Date published: 2016-04-09

Hello, Could you please tell me the outside dimensions of the black molding on a 120 long tank?

Asked by: Beth11111
48-3/8 x 24-3/8 x 25 would be the outside dimensions of our standard 120 gallon tank. We don't make a long version, only standard and XH. BREX
Answered by: BREX
Date published: 2016-04-07

Hi, I recently bought a 180 gal. perfecto tank and was wondering if I build my own stand will this void the warranty? 

Asked by: will5150
Not exactly. Instead of a lifetime warranty on it however, you will get only a one year warranty and only on the tank itself, nothing else. With the limited lifetime warranty you can also have coverage for damage to stands, etc. To receive the lifetime warranty, you do not have to buy our stand, but you do have to buy a manufactured aquarium stand. BREX
Answered by: BREX
Date published: 2016-03-24

Is it possible to get it drilled so that it can fit 2" bulkheads? I have a huge sump set up in my basement that feeds my display tank in our first floor den and I'd like to get more flow if possible. 

Asked by: GregB
Unfortunately, no, we do not do any custom orders any longer. BREX
Answered by: BREX
Date published: 2016-03-22

I purchased a used 90 gal tank with left corner overflow. It says made by M.C. 2006 on tag? Do you make a Overflow Kit I could buy from you? If I have to make my own can you email me the plumbing diagrams? Think I am going to set up a herbie.

Asked by: Steelsoul
We do not sell direct, unfortunately, but I can definitely send you some instructions! I will email them to you directly. BREX
Answered by: BREX
Date published: 2016-03-11

Is this cornerflow always in the back left corner of the 110 gallon size? We have a client that is looking for a tank with it needing to be in the back left. Thanks!

Asked by: AquaVision
Yes, it is. We do not make it a version with it in the right hand corner. BREX
Answered by: BREX
Date published: 2016-03-10

Does your company make donations? we are a high school aquatics club that is looking for help. We work off donations and fundraising. We are in desperate need of a 90 gallon overflow tank with lights, any help in this matter is greatly appreciated.  

Asked by: palatine aquatics
We do occasionally donate product. Please email us directly with full school information or write us a letter using school letterhead. BREX
Answered by: BREX
Date published: 2016-03-04

I just bought a marineland 110 gallon aquarium.(crystal clear glass aquarium) can it be drilled?

Asked by: cory jpe
None of the panels are tempered, but drilling voids any warranty you may have on it. BREX
Answered by: BREX
Date published: 2016-03-04

I purchased a 125gal corner drilled tank from what I can tell the return (which has a reducer) and drain lines have bulkheads that are are fitted for 1" PVC pipe.  Is that correct?

Asked by: codiejones
Yes, correct. I can email you a drawing of the bulkheads and some plumbing tips, directly. BREX
Answered by: BREX
Date published: 2016-03-03

I'm looking for replacement corner overflows for my 220 gallon tank. Just the black piece that you silicone inside the tank. For some reason the previous owner took them out and capped of the drilled holes. Any way I can order those?

Asked by: jared9584
Unfortunately, we do not sell the parts to the overflows separately. BREX
Answered by: BREX
Date published: 2016-02-29

Hi My tank has a scratch as long as a dollar bill is there anything I can do

Asked by: lainey1661
it's not deep but was wondering if there is something I can do to fix it
Answered by: lainey1661
Date published: 2016-10-22

How thick is the glass on the 150XH Corner Flo predrilled glass aquarium. Thx

Asked by: Peter72
SIDES 12 mm ENDS 12 mm BOTTOM 12 mm BREX
Answered by: BREX
Date published: 2016-02-18

Does the 125 gallon corner flow tank have 1 or 2 cross braces. If it only has 1, do you plan to make any of the 125 gallon tanks with 2 cross braces.

Asked by: Phyre
Actually, there are currently two versions on the market. The old one had one brace, but we very, very recently just changed it so that it now has two braces. There is no new item number for the tank, so if you special order one through a LFS you need to make sure they explain to their distributor whether they want one or two braces. Item number for the tank is 10125. The new glass canopy is NV81608. BREX
Answered by: BREX
Date published: 2016-02-02

Silicone color

What color silicone is the 180 gallon corner flo made with and is there a plumbing diagram? Thanks. Dave
Asked by: Buddha
I just picked up my 180 corner flo that was made 1-2016 and it is only clear silicone around the very bottom that you won't see and is black silicone up the sides where you will see it when the aquarium is set up.
Answered by: Buddha
Date published: 2016-01-31

Custom Tank ?

Would you guys build a custom tank. I would like a 48x36x24 with 2 overflows and star-fire glass? I see you have one close to this size but i don't like the deep tanks . It makes it hard to reach the bottom to set things up ,also you need a strong light to get that deep for corals that you may have on the bottom . Thank you
Asked by: chuckyz250
No, we do not do custom tanks, unfortunately. The DD is 3" taller. We understand your concerns, but do not have a 36" wide tank less than 27" deep. BREX
Answered by: BREX
Date published: 2016-01-23

93 rimless canopy

Is it possible to order a black canopy for the 93 cube?
Asked by: halfsack
No, we do not make a wooden canopy for the rimless tanks. BREX
Answered by: BREX
Date published: 2016-01-11

Corner Overflow Cube Tanks Discontinued?

I'm looking for a 70g-93gal corner overflow cube, but big als Canada told me they are discontinued. is this true as you still show them on your website.
Asked by: Marx
The framed ones are, yes, but not the frameless ones. BREX
Answered by: BREX
Date published: 2016-01-11

Glass cover for 300G DD

I just installed my new 300G DD. I'm looking for the glass covers you used to sell (item #36654), but I can't find them for sale anywhere on the internet. Is this a discontinued item?
Asked by: BrendanM
Congratulations on your new tank! No, this is not a discontinued item. It is not a standard size, however, and will most likely need to be special ordered through a local fish store. BREX
Answered by: BREX
Date published: 2016-01-08

Corner flow tanks

Does the plumbing kits provided with these tanks come pre-glued at any/all joints? If not, is do you recommend not glueing?
Asked by: Webber
No, it does not, and no, we do not recommend gluing. You can glue, but they are designed to be pressure fitted. That being said, I just installed an older, used 90 gallon in my office for my turtle and did NOT glue. I found it leaked just a tiny, tiny bit. All I had to do was use channel lock pliers to tighten the bulkheads, and it stopped. I had initially hand tightened the bulkheads and they were pretty tight, but I guess not tight enough. Just be careful to not overtighten with the pliers or you can crack the glass. Tighten slowly. I will send you a plumbing tip handout we have that I think will help you. BREX
Answered by: BREX
Date published: 2016-01-07

question on your cube aquariums

does the 93 gallon 30x30x24 cube come with trim? or is that size only available rimless? also does the 93 gallon cube come with the opinion of reef ready with a corner over flow?
Asked by: Imprezadude
It is only frameless, but comes with or without an overflow. BREX
Answered by: BREX
Date published: 2016-01-05

What tolerance to the stands need to have in flatness?

I recently purchased a 110 gallon corner overflow and built my own cabinet. The stand is solid and level. However, when I set a 48" level on the top rails, there are a few areas I can pass a sheet of paper between the stand and aquarium. The gap is too small to see or measure, but its between the thickness of a credit card and a sheet of paper. Will the tank safely deflect to accommodate this? Should I put a sheet of 1/8" foam or neoprene to help level the top rail?
Asked by: clsanchez77
We typically cannot advise on custom stands. The levelness of the stand, as well as the strength of the material are not the only considerations. It is how well the stand can support the pressure points of the tank in question. This takes a good deal of testing to verify. Therefore, we do not recommend custom stands. If you wish to email pics of your stand to my attention, I can run them by the engineer after the first of the year. BREX
Answered by: BREX
Date published: 2016-03-05

I have a mixed reef Marineland 150 gallon cube. I have 3 powerheads in pulse mode (2-3 second pulses). Will that fatigue the seams on the tank?

I read on various forums that wavemakers or powerheads on intermittent pulse programs lead to silicone fatigue and eventually premature leaks. Is this true? If it is, what do you recommend?
Asked by: Catalin
We have not tested our tanks with these systems. However, they do provide a great deal of pressure, and we recognize the cause for concern over time. We do not have any recommendations at this time, since we have not tested them. BREX
Answered by: BREX
Date published: 2015-12-28

Loud Corner-Flo

Hello, I purchased a 300G deep dimension aquarium with the stand and hood. I just set it up and the return is very loud. Water is coming out from the anti-syphon hole and is making splashes and noise. I am wondering if I do not have enough flow as the water level in the overflow box is quite low. I am adding another return pump. My current pump is rated for 900gph and the overflow boxes aren't filling up to the syphon hole. Please let me know. Thanks, Jon
Asked by: MoorishIdolFan
Hi Jon, Congratulations on your new tank! It does sound like the flow rate is too low. Your pump may be rated for 900 gph but what does it do with a 4-5 foot head on it? Probably less than the necessary 700-750 gph. I think a bigger pump is definitely in order here. BREX
Answered by: BREX
Date published: 2015-12-16


can you please send me the diagram for the pre-drilled 93 gallon cube
Asked by: stupendousmenace
I do not have a diagram specific to the 93 cube, but do have one for our overflows. They are all the same. I will email that to you. BREX
Answered by: BREX
Date published: 2015-11-19

How much is the 110 48x18x30 corner flo aquarium?

I am a retail store looking to get one for a customer.
Asked by: thefishtank
We appreciate your interest in our product, but you would need to go through a distributor. If you will call or email us directly, we can provide the names of distributors in your area. We need the store name, and address in order to do so. BREX
Answered by: BREX
Date published: 2015-11-11

Do you make a reef tank 48 X30 wX24h

Asked by: seafalcon
No, we do not make any of that size. BREX
Answered by: BREX
Date published: 2015-11-11

where can i get one in canada?

Canadian dealers?
Asked by: zekes69
Big Al's Pet Supplies is a huge retailer throughout Canada, and they carry our tanks. Beyond that, visit our Buying Options page and click on the Store Locator link to find a store near you. BREX
Answered by: BREX
Date published: 2015-11-04
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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