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
Corner-Flo™ Rectangular Aquarium - Black is rated 3.2 out of 5 by 6.
Rated 3 out of 5 by from Bad silicone job I purchased a 220 gallon with built in over flows. Set the tank up for freshwater Discus Fish. This tank is a brute very, very, very heavy once you set it up you definitely don't want to handle it again. After set up and filled with water I noticed a small bubble in the black silicone on the front left seam about in the middle of this seam. I didn't think it was a serious issue, all of the silicone on that seam looked good and the bubble was very small, all other seams were good. due to the weight of this tank, all plumbing and set up complete I really didn't want to move this beast. Two years into this setup my wife called me and said the aquarium was leaking at the seam. By the time I got home there was stream of water shooting out from the seam about the size of a pencil lead. Thank goodness she was home and put a bucket under the stream of water. I went into panic mode, got out my 20 prized Discus and a few other fish put them into large coolers and completely drained the aquarium and took off to my local aquarium store. By the time I had drained the aquarium the seam had opened up abut three inches. I have not contacted Mairneland yet but I doubt I will ever set up another large aquarium again regardless of the outcome. Thankfully I have a neighbor who is in the racing business and he had a crew of strong young men who got the aquarium out of my home for me. I am 68 years old, and there was no way I was going to move this thing with some serious help. I have had aquariums since I was 6 or 8 years old and was my first and only tank failure. MY ADVICE IF YOU ARE GETTING A LATGE AQUARIUM AND THE SEAMS ARE NOT PERFECT IN EVERY WAY DO NOT ACCEPT IT!!!!!!!!!!
Date published: 2017-02-24
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 comes with when you buy a predrilled tank?

Asked by: Jfuller3143
Thanks for asking! Each pre-drilled aquarium comes with a plumbing kit and corner-flo panel. All necessary bulk-head fittings, drain, return pipes, and dual Loc-Line outlet nozzles are included in the plumbing kit.
Answered by: Customer Service
Date published: 2017-07-21

I purchased a 110 gallon corner flow.  Can I get a copy of your plumbing tips.   I am connecting it to a C-530 canister filter.   

Asked by: RobZ
Sure, we can email those to you. BREX
Answered by: BREX
Date published: 2017-07-19

I will soon be purchasing a 120XH (60" x 18") reef ready tank and will be making a custom stand for it. I was wondering if you could give me a diagram of where the holes are located for the dual corner-flo. Thanks

Asked by: JasonB
We will email this to you directly. BREX
Answered by: BREX
Date published: 2017-06-15

I'm looking to purchase a 180gal rectangular aquarium, pre-drilled so that I can use the Bean Animal overflow. Who can I speak to about this? Thanks, Mike 415.572.3975

Asked by: Mike_mroz
Hello Mike, You will need to special order this through a local fish store; we do not sell direct. We also do not make customer orders so our standard 180 gallon with two corner overflows is item 97013. BREX
Answered by: BREX
Date published: 2017-06-09

hi - can you send me the drilled hole sizes for the drain and return lines on the corner overflow tanks please>

Asked by: lancer
Hi lancer, The bulkheads are 1" and the holes are 1-1/4". BREX
Answered by: BREX
Date published: 2017-05-23

Is your 40 (45?) gallon cube aquarium available with a corner-flo option? My local fish store has the corner-flo in the 60 gallon but I would rather go with the 40...? Could the 40 gallon cube be drilled after purchase?

Asked by: trhuke
Sorry, but no, we do not make any corner flows that small. There are no tempered panels in the 45 cube, but any drilling voids all warranty on the tank. BREX
Answered by: BREX
Date published: 2017-05-01

i sent in some pics today of bubbles in front glass on a 220 corner overflow tank. how long dose it take to hear back from someone.

Asked by: ike71
Hello ike71, Our response time to emails is typically one business day. I checked and did not see an email from your address, so either we have not received it or it has been answered. Please be sure to check your spam box. BREX
Answered by: BREX
Date published: 2017-04-27

what are the stipulations of the lifetime warranty on the marineland aquariums. specifically the 265 reef ready?

Asked by: Chris D
The tank must not be altered or damaged in any way, and must be on a manufactured aquarium stand or a custom stand built by a recognized pet store. We require the receipt, built by sticker pictures of any area that is damaged due to poor materials or workmanship, etc. BREX
Answered by: BREX
Date published: 2017-03-22
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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