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50 gal System II Acrylic Aquarium, 36 by 15 by 16", Cobalt Blue

3.2 3.2 out of 5 stars 29 ratings

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Cobalt Blue
50 gal Rectangular

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About this item

  • SeaClear System ll Acrylic Aquarium offers a true wet/dry biological filtration system built into the back of the aquarium
  • Filter includes chambers that accommodate biological, mechanical and chemical filter media as well as space for a heater and the optional System II Protein Skimmer (sold separately)
  • Full Hood with 24" fluorescent fixture (light bulb not included); Efficient and economical to run
  • Acrylic Aquariums are 17 times stronger than glass and weighs half as much as a Glass Aquarium
  • Quick change prefilter makes cleaning simple; Air-injected nozzle

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$642.59
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SeaClear 50 gal System II Acrylic Aquarium, 36 by 15 by 16", Cobalt Blue
SeaClear 50 gal System II Acrylic Aquarium, 36 by 15 by 16", Cobalt Blue
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SeaClear 50 gal Acrylic Aquarium Combo Set, 36 by 15 by 20", Cobalt Blue
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Price$642.59$236.70$319.99$169.99$429.99
Delivery
Get it as soon as Monday, Apr 8
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Customer Ratings
Value for money
4.2
3.2
4.5
3.5
Easy to assemble
4.7
4.8
4.4
Easy to clean
4.2
4.2
3.6
Giftable
3.6
4.8
3.2
Sold By
Amazon.com
Amazon.com
LANDEN
GDLF
Amazon.com
tank volume
55 gallons
20 gallons
50 gallons
material
Acrylic
Glass
Glass, Wood
Metal, Engineered Wood
Glass
shape
Rectangular
Rectangular
Rectangular
55-75 Gallon
Rectangular
weight
20 pounds
61.7 pounds
20 pounds
style
50 gal Rectangular
Modern
Simple Minimalist
Modern
50 gal Rectangular

From the manufacturer

About us

WE CREATE

We innovate, design, produce and manufacture some of the finest pet furniture, habitats, pet toys and aquarium systems in North America.

WE CARE

Our mission is to provide quality, environmentally responsible products that improve the lives of pets through ingenuity and value which aid in the bond between pet and pet owner.

Product details

  • Product Dimensions ‏ : ‎ 36 x 15 x 16 inches; 20 Pounds
  • Item model number ‏ : ‎ X1010015053
  • Department ‏ : ‎ Aquariums & Tanks
  • Date First Available ‏ : ‎ May 24, 2010
  • Manufacturer ‏ : ‎ Pet Partners dba North American Pet
  • ASIN ‏ : ‎ B0009YWOF6
  • Country of Origin ‏ : ‎ Mexico
  • Customer Reviews:
    3.2 3.2 out of 5 stars 29 ratings

Looking for specific info?

Product Description

When quality determines the choice, the choice is clear: SeaClear. No one can match the quality of SeaClear's virtually invisible seams, which are backed up by the industry. For the discerning aquarist for whom nothing but the best will do, SeaClear can make even the most extreme aquatic dreams come true. The SeaClear System ll Acrylic Aquarium offers a true wet/dry biological filtration system built into the back of the aquarium. The SeaClear System II filter includes chambers that accommodate biological, mechanical and chemical filter media as well as space for a heater and the optional System II Protein Skimmer (heater and protein skimmer sold separately). The unique molded Turbulence Manifold allows for excellent circulation throughout the entire aquarium, making the System II the undisputed champion of all-in-one aquariums. All this without any outside plumbing or noise, the System II is complete and ready to run. Just add Water, Gravel and Fish! * Efficient and economical to run * Full Hood with 24" fluorescent fixture (light bulb not included) * Four way adjustable skimmer gate prevents fish from entering filter * Quick change prefilter makes cleaning simple * Heater or Optional Protein Skimmer chamber * Bio-Air Drip tray distributes water evenly over biological filtration * High surface area biological media * Air-injected nozzle * Media tray for chemical and carbon filtration * 420 gph submersible pump * Clear slot to view water level in filter * Turbulence manifold for circulation * Acrylic Aquariums are 17 times stronger than glass and weighs half as much as a Glass Aquarium * Makes it safer around children and pets.

Customer reviews

3.2 out of 5 stars
3.2 out of 5
29 global ratings

Customers say

Customers like the appearance of the vivarium, saying it's beautiful. However, some customers have reported durability issues, saying the tanks were cracked on the bottom and had a broken filter motor. They also feel the size is too small, with small openings to install decorations. Customers also say the instructions are poor and the pump does not work.

AI-generated from the text of customer reviews

4 customers mention4 positive0 negative

Customers like the appearance of the vivarium. For example, they mention the tank is beautiful, but the problem was it was supposed to be.

"Tanks is very nice but it came with a broken return pump and is missing the filter back cover...." Read more

"The tank is beautiful but the problem was it is supposed to be ready to use and that's when the dilemma happened...." Read more

"...It’s beautiful but NOT worth the hassle when parts fail." Read more

"Nice, but not great..." Read more

5 customers mention0 positive5 negative

Customers are dissatisfied with the durability of the vivarium. They mention that the tank was cracked on the bottom, it had a broken pump, and the filter motor failed.

"Tanks is very nice but it came with a broken return pump and is missing the filter back cover...." Read more

"...pricey tank for having a very crappy instruction manual and broken RIO power head pump!!!!!! Very disappointed!!!!" Read more

"...It’s beautiful but NOT worth the hassle when parts fail." Read more

"...of these aquariums- the first one had a broken filter motor and crack in bottom and the replacement had same problem with leakage-it was cracked on..." Read more

4 customers mention0 positive4 negative

Customers are dissatisfied with the size of the vivarium. They mention that the instructions are way too small, the opening to install decorations is too small for large pieces, and the lighting flat out stinks.

"...easy to buy a nylon screw at home depot, nope, I bought many size, they don't fit and when they do they dont hold up the flow gate in place." Read more

"Opening to install decorations too small for large pieces. Lighting flat out stinks...." Read more

"Bad instructions and way too small..." Read more

"Wrong dimensions and loud..." Read more

3 customers mention0 positive3 negative

Customers find the instructions for the vivarium to be lacking. They mention that the air pump does not work and that the product is beautiful but not worth the hassle when parts fail.

"...came with glue all over it, the air pump does not work and there were no instructions...." Read more

"...Very pricey tank for having a very crappy instruction manual and broken RIO power head pump!!!!!! Very disappointed!!!!" Read more

"...It’s beautiful but NOT worth the hassle when parts fail." Read more

3 customers mention0 positive3 negative

Customers are dissatisfied with the pump. They mention that it didn't work, and it stopped working while they were out of town. Some customers also report that the filter and pump stopped working.

"...The filter area takes up almost half the tank, my hood did not work it came with glue all over it, the air pump does not work and there were no..." Read more

"...The Rio pump was not working to make the matter worst, at first it did not start and when it finally started it only lasted for a few hours and then..." Read more

"3 months owned 46 gallon bow front and the filter & pump stopped working while I was out of town, I am meticulous with cleaning…now my fish are in..." Read more

came with broken pump
2 Stars
came with broken pump
Tanks is very nice but it came with a broken return pump and is missing the filter back cover. Very disappointed after spending alot of money on a tank.
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Top reviews from the United States

Reviewed in the United States on June 5, 2016
Color: BlackStyle: 50 gal RectangularVerified Purchase
10 people found this helpful
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Reviewed in the United States on July 22, 2016
Color: Cobalt BlueStyle: 46 gal Bowfront
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3.0 out of 5 stars It seemed a really good deal since it appeared to be a one and ...
Reviewed in the United States on July 22, 2016
I didn't buy it on Amazon. I got it cheaper on clearance 12 months ago for $585. But I do almost all my shopping on amazon, and wanted others to know how this performs. Let me start by saying this was bought to be my first saltwater reef tank. I didn't know much about tanks when I started. It seemed a really good deal since it appeared to be a one and done purchase. I have learned a lot in the last year. This review will go over the pro's and cons of the tank. As well as my experience with it.

Pro's.
1. Easy to setup.
2. Stand made for this size aquarium is easy to find and buy from petco, petsmart, or sometimes amazon. (also cheap, I paid $90)
3. Low evaporation. 1-1.5 Gallon per week so long as back covers used, if not it sky rockets to 3-4.5 gallons.
4. Light weight before filled.
5. Very good clarity, at least initially.
6. Will keep fish and corals alive (with work)

Con's.
There are quite a few, many won't be apparent to a new owner for weeks or months. But trust me they really start to add up, and become costly. Keep in mind this is far using this tank for SALTWATER. I highly doubt it would be nearly as bad for fresh.

1. Skimmer: You need to buy a skimmer. $60 for the one designed for this tank, +$40 for a high power air pump to power it, +$10 good size wood airstone every 2 months (no ceramic won't work). Finding it is hard, but I found it for sale at petco, online only. Alternatively you can get a HOB filter. It took me 3 attempts to find one that fit, but the down side is to use it you need to remove the covers on back and that makes evaporation more than double. After much messing around I decided the best skimmer was just the one made for it, despite it's low capacity.

2. Pump:
A. The pump is literally the cheapest possible piece of equipment they could find. A Rio pump that is 420g per hour supposedly, but in reality it pushes just under 360 in real world use. I tested it on a 30gallon bucket to see what it really did. If you want saltwater, you need a 600g-750g rated pump for this tank. like the one I just bought "Sicce Syncra 3.0 Aquarium Pump, 714gph". It worked for a time, but it definitely is not strong enough compared to a better pump.

B. You will need to use a course substrate with this tank and pump even the weak one it comes with. The manifold return is awesome, BUT it blows fine sand around like crazy since it goes to lower area of tank. Use a heavier calcium carbonate substrate.

3. Acrylic. The tank itself scratches easier then other acrylic tanks. From my experience acrylic tanks come in 3 levels of hardness, Soft medium and hard. This tank is medium or soft. There are better acrylic tanks out there, that do not scratch as easy. I know because I went to a custom shop to window shop a few months ago, and they had a demonstration booth showing different hardness quality levels. My tank is far from the hardness of what they sold. It will scratch, and they will add up. No matter how carful you are, even acrylic safe pads over time will cause a slight fog. A small grain of sand stuck to the pad will cause an actual visible scratch. ( DO NOT ATTEMPT to use magnetic cleaners on this tank, I tried Three different ones, ranging from $20 - $120. They ALL caused scratches to tank. It is too soft for them.)

4. Pre-filter -- Quickly clogs, and becomes a detritus trap. Not easy to clean and replacements are too expensive to just throw away every time. Also after 1-2 washes they become far less effective, and stuff sneaks past. (I tested with a second filter bad placed where the drip plate is. It is noticeable and shocking how much gets past in 24 hours.) ---- You can mitigate this by placing a cut to size filter bought at Petco for $8 under the drip plate. You can also buy a cut to size sponge(they make them for aquariums), and placing it veritcally straight down in the first chamber. Works better, and cheaper.

5. Bio-balls /Drip plate -- Bioballs are no longer a thing in the aquarium world, almost everyone uses Ceramic media now. After making the switch I saw a HUGE difference in my tank. The drip plate however is pretty good and you can place seachem bags of carbon phosguard, or purigen on it. (after you upgrade pump of course, they work better as more flow)

6. Light --- Useless. I replaced it immediately. Far too weak for even a fresh water tank. Let alone a reef tank. Marine and Reef 2.0 is best light to get for this tank $150-180 on amazon and most places. get the 36in-48in.

7. You will still need a wavemaker for this tank for saltwater, or saltwater reef. $60 for a cheap on. But 2 would be best.

8. Must have a heater, and possibly chiller depending on climate. Not room for both at once.

----------------------------------------------------

Overall.

While this tank Seems like a AIO solution. There is A TON to buy, and you are extremely limited on "upgrades" due to the very irregular shape of the rear area. if you want to do saltwater, I can say 100% this will work, but there are FAR better options for cheaper than this will cost to make work properly. With all the money I put into this tank I could have gotten a fearrari of a tank like Red Sea, or CAD, Or even gotten a custom tank installed with a sump.

This tank to run properly still needs about $600 worth of stuff. It won't work worth a dam for saltwater out of the box. Even fresh water will need a new light for sure.

For the price. You are better off with a red sea reefer, or CAD brand tanks. Both of those considered top of the line. If I knew what I knew now I could have gotten a much better quality tank. Oh and unless you like 10x more work cleaning your tank, do not get acrylic. Not unless it is a custom acrylic made much harder like they do on the show TANKED. Not being able to use aquarium magnets SUCKS.

But if you are in the market for a budget acrylic tank... The Coral Life 29g is a better deal, and there are TONS of aftermarket parts made for that specific tank to choose from. Either way picking a more major brand is the way to go, or a more traditional setup. This tank is too nitch and has no specific aftermarket parts or equipment made for it. Bring a measuring tape every time you want to buy something.

----------Last but not least pictures.

2 of the tank, 1 a few months ago, 1 showing algae outbreak caused by bioballs and poor pre-filtration before they where replaced / modified. And one showing back of tank before cleaned and modified filtration system, showing the crud that ends up back there. (it is far worse then picture shows.)
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58 people found this helpful
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Reviewed in the United States on January 21, 2024
Color: BlackStyle: 40 gal RectangularVerified Purchase
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2.0 out of 5 stars came with broken pump
Reviewed in the United States on January 21, 2024
Tanks is very nice but it came with a broken return pump and is missing the filter back cover. Very disappointed after spending alot of money on a tank.
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Reviewed in the United States on October 20, 2019
Color: Cobalt BlueStyle: 26 gal Flat Back HexagonVerified Purchase
16 people found this helpful
Report
Reviewed in the United States on July 2, 2019
Color: Cobalt BlueStyle: 26 gal Flat Back HexagonVerified Purchase
Reviewed in the United States on December 20, 2020
Color: BlackStyle: 50 gal RectangularVerified Purchase
8 people found this helpful
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Reviewed in the United States on February 19, 2020
Color: Cobalt BlueStyle: 50 gal Rectangular
Customer image
3.0 out of 5 stars MUST know before buy
Reviewed in the United States on February 19, 2020
Mixed feelings...Firstly, full disclosure I did not buy mine on Amazon but have strong feelings about the customer service and want to let future buyers know what they are getting.

PROS:
- BEAUTIFUL tank, love how everything is concealed. I'm using for freshwater with gravel so don't have a lot of the concerns the saltwater/sand substrate buyers expressed.
- Lightweight, not many truly strong stands on the market so this gives me piece of mind.
- I've had it up for a few weeks and don't find it scratches easily.

CONS:
- Should come with LED. You'll likely want to buy one up front. A couple small holes drilled and neatly placed zip ties most 24" LEDs will install nicely in the hood.
- Pump was trash. Some people say they got a Rio, I got an even more generic one that had some custom inlet made and was extremely loud. I replaced it with a Rio 1400 and it's quiet and has great water flow. A 300 GPH powerhead is not enough for this tank.
- This is NOT a "Seaclear" product. It's sold by North American Pet Corp. The instructions are useless and they provide a sticker warranty card and ask you to email it in. THE COMPANY WILL NOT COVER ANYTHING BUT ACRYLIC DEFECTS. If you have a problem with anything else they WILL tell you to return the entire tank to the store you purchased from. Make sure you are happy with EVERYTHING before you fill it.
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7 people found this helpful
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Reviewed in the United States on March 10, 2018
Color: BlackStyle: 40 gal RectangularVerified Purchase
16 people found this helpful
Report