Half-Moon Aquarium Combo

  • 11535
  • Shop aquariums and tanks, including this great half moon aquarium with LED lighting.
  • 11536
  • 20 Gallon Half Moon Shaped Glass Aquarium
  • 10 Gallon Half Moon Shaped Glass Aquarium
Product No. 4386
Find a Store In Stock

LED Lighting and the unique Half Moon shape of these aquariums make a stunning combination! The LED Light provides a natural shimmering effect in the water, is energy efficient and is powered by a low voltage adapter.

Each aquarium has a clear plastic canopy with a feeding hole, and cut outs for the filter. The canopies also help to reduce water evaporation and keep fish inside the aquarium. 

Half Moon shaped glass aquarium (20 gallon or 30 gallon)
  • 180° seamless views of the aquarium
  • Black plastic framed bottom

Half Moon 20 and 30 include:

  • Half Moon 20 or 30 Aquarium
  • Clear plastic canopy with holder for LED Light
  • LED Light with 42 White and 3 Blue LEDs
  • Daylight LEDs create a shimmering light that mimics the natural underwater effect of sunlight
  • Nightlight LEDs allow for nighttime enjoyment of the aquarium
  • 3-position switch: On, Blue, Off

The Half Moon 20 and 30 Aquariums do not include a filter. The clear covers have been designed with a filter cut out that fit the following filters:

Half Moon 20 - filter cut out dimensions are: 5.906" x 2.638". Recommended filters: Penguin 100 or Tetra EX20

Half Moon 30 - filter cut out dimensions are: 8.500" x 3.500". Recommended filters: Penguin 150 or Tetra EX30


A Half Moon Stand is available for purchase as well.

Is the tank made of tempered glass, or regular glass?

I wish to drill a 2" hole into the side of the aquarium for plumbing purposes, however I don't want it to shatter like tempered glass. Would that be alright with this tank or is it made entirely out of tempered? #30g model particularly#
Asked by: Stomatopod
It is not tempered, no, but any drilling will void the warranty. BREX
Answered by: BREX
Date published: 2015-06-04

Is it possible to get a plastic lid without the feeding cutout?

I have lost several fish over the past 6 months due to this. Seemed like a good idea when I first saw it, but it has been a problem.
Asked by: tinypurplefishes
No, we do not make any other style lid for this tank. Not sure how you could lose fish because of a feeding hole. For various reasons, I never put the plastic strip on the back of my 38 gallon's glass canopy and have a 2" wide area the length of the tank that is open at all times. Have never lost a fish. If you have species which are particularly prone to jumping for some reason, I would recommend placing something decorative over the opening. BREX
Answered by: BREX
Date published: 2015-06-04

Do you plan on offering a larger half moon tank in the near future.

Asked by: Jackspaw
That is not likely, no. The closest to that are the 46 and 80 gallon Euros. BREX
Answered by: BREX
Date published: 2015-05-11

where can I buy just the hood

I have the tank but the canopy is cracked, can I just buy that?
Asked by: rebeccagoolsby
No, that is not sold separately, but if you call or email directly, we will send one to you, free of charge. BREX
Answered by: BREX
Date published: 2015-04-16

30 gallon half moon

I have searched at petsmart and McClouds pet close to my zip of 95247. I have searched on Amazon. I can't find a 30 gallon half moon! No one seems inclined to help me. I have 10 gallon and 20 gallon half moon, really want a 30. Can I order directly from you? Please?!
Asked by: Cindi
We do not sell tanks direct as they do not survive the shipping via UPS or Fed Ex. McClouds is a local fish store, and may be able to special order this tank for you. BREX
Answered by: BREX
Date published: 2015-04-10

what are the dimensions of this aquarium?

Asked by: Missy41886
Depends on which size you are referring to; it comes in a 20 gallon, and 30 gallon size. 23-15-32 x 12-1/8 x 23-9/16 is the 20 gallon size. 26-13/16 x 13-29/32 x 26-31/32 is the 30 gallon size. BREX
Answered by: BREX
Date published: 2015-03-30

What are the dimensions of the Half Moon 30? Also is the bottom of the 30 plastic, like the 10 Gallon, or glass?

Asked by: Paulv
27" across the back, 14" deep in the middle, 28" high. The bottom is glass.
Answered by: funklizard
Date published: 2015-07-25

can i order just the half moon plastic lid cover for my 30 gal fish tank without the led lights . my old top broke

Asked by: tommytoots
It is not sold separately, but if you will call or email us directly, we can assist you. BREX
Answered by: BREX
Date published: 2015-03-10

What are the dimensions of the 10 gallon half moon and the 20

Asked by: Paulv
20 gallon half moon is 23-15-32 x 12-1/8 x 23-9/16. BREX
Answered by: BREX
Date published: 2015-03-01

What are the dimensions of the 30 gallon half moon stand?

Asked by: Nemo13
27.00 L 14.25 W 28.25 H BREX
Answered by: BREX
Date published: 2015-03-04

My aquarium shattered

I was attempting to slide the aquarium a few inches on the table. The aquarium shattered. I bought this under a year ago but do not have the receipt and petsmart won't issue me a copy. I was able to save my fish, but was cut and it was a disaster in the room. I was told I need to contact Marineland in order to get a replacement since it was under a year. What process do I need to take in order to get this issue resolved. Regards, Richard Zella
Asked by: RichZ
You will receive an email directly answering your question. BREX
Answered by: BREX
Date published: 2015-01-12

Where do I get the 30 gallon half moon lid

Asked by: tmtate13
If you call in to our consumer relations department, we can take your information and send you out a replacement. Our phone number is 1-800-322-1266 and our hours are Monday - Friday 7:30 AM - 5:30 PM EST. ML2
Answered by: BREX
Date published: 2014-12-04


i have brought a half moon 30 gal. tank. looking for a better light system for plants can you please tell me what would fit on it thank you
Asked by: CRMcDonald
I would recommend the 24-36 inch Aquatic Plant LED. BREX
Answered by: BREX
Date published: 2014-12-01

can you get a replacement canopy?

I recently purchased a 30 gallon half moon tank from a friend but it does not have the canopy. Are those available for purchase?
Asked by: LisaKing
No, but if you email us directly or call in, we will send one to you, free of charge. BREX
Answered by: BREX
Date published: 2014-11-14

What are the dimensions of the 30 gal. Tank?

Asked by: RoRo
Here you go: 26-13/16 x 13-29/32 x 26-31/32 BREX
Answered by: BREX
Date published: 2014-10-21

What is the price of the 30 gallon half moon aquarium.

Asked by: regishtar
We do not sell aquariums directly. That would be sold through local fish stores and retail pet stores. Pricing depends on the store you purchase the tank from and whether they sell it alone or as an ensemble. We do not give out pricing. BREX
Answered by: BREX
Date published: 2014-09-08

my marine light for the halfmoon 30

light got trashed it is 11 inches by four inches and has white and blue led. is there a replacement available?
Asked by: capecodder
Yes, that is item 32996. It is available on most websites, and through Petsmart/Petco or independent pet stores. BREX
Answered by: BREX
Date published: 2014-07-07

I need canopy custom hood for my half moon tank

Asked by: sponge
Unfortunately, we do not do any custom work. BREX
Answered by: BREX
Date published: 2014-06-05

Do you sell replacement lids for the half-moon 30 gallon aquarium?

I recently broke my lid while cleaning it. Please let me know if there is a replacement. Thanks.
Asked by: Cris
We do not sell one, no. I believe you were also in our emails this morning. We do send them out upon request, free of charge. You just need to email your name, address, and phone number to us. BREX
Answered by: BREX
Date published: 2014-07-18

is there a warranty with the 30 gal half moon aquarium???? mine started leaking last night and do i need a reciept??

Asked by: lkbbrat
Yes, all of our tanks have warranties on them. The warranty depends on whether the tank is on a manufactured aquarium stand or not. Please email us directly, the following information: built by lot code, receipt, picture of tank set up. BREX
Answered by: BREX
Date published: 2014-05-16

I am planning to buy the 10 gallon half moon ,but I do not live in America what other items do you recommend that I buy before I leave the country?

Asked by: Lissy
This is hard for me to say, as some of the items you will need will not necessarily work in another country, such as the filter and heater. Also, some countries won't allow items in such as the fish food. However, what you want to start a tank would be: gravel, heater, filter, decorations such as plastic plants, a thermometer, food, water conditioner We would recommend a Whisper 10 filter, Tetramin tropical food, Aquasafe Plus from our products. BREX
Answered by: BREX
Date published: 2014-04-21

30 gal. Half Moon "GLASS" Tank?

Is this tank glass or acrylic? I have seen ones in acrylic, which is what I want, but your web page says glass. Did you change production? This will make a huge difference.
Asked by: Russcondk
The Half Moon tanks have always been glass, except for the very small ones. 10, 20 and 30gallons are glass. B-Rex
Answered by: BREX
Date published: 2014-03-18

Emperor 280 measurements

Can you please tell me the measurements of your Emperor 280? I want to upgrade to this filter but the filter cut out on the 30 gallon half moon lid measures 8.5 inches and I read that the Emperor 280 was like 10 inches wide.
Asked by: kmullin80
I believe we spoke just the other day. It is 10" wide. B-Rex
Answered by: BREX
Date published: 2014-03-07

where can I buy a half moon aquarium without the stand?

I can not use the stand because of a heat vent in the way and the stores refuse to sell them without the stand?
Asked by: 4Elliot
You would need to find a local fish store that will special order for you. Avoid the chains like Petsmart and Petco because they are unable to order something that their main office doesn't already carry. I see the 20 gallon size is on www.amazon.com. B-Rex
Answered by: BREX
Date published: 2014-03-05

Emperor 280 fit

Will the filter cut out in the lid of the half moon 30 gallon fit the Marineland Emperor 280 filter??
Asked by: kmullin80
Yes, it will indeed. B-Rex
Answered by: BREX
Date published: 2014-02-27

30 gallon half moon aquarium

Do you know of any stores in Arkansas that sells this aquarium? I've looked everywhere and cannot find it. Thanks!
Asked by: LisaLovesFish
We can use a zip code to locate stores carrying our products, but have no way of knowing if they have a particular product in stock or not. B-Rex
Answered by: BREX
Date published: 2014-02-23

LED light for my tank

Hi, I bought a half moon shape 30 gallon tank last year and now the LED light went out, only about 4 of the 45 lights works. I would like to replace it. It has a fitted spot for the light on the see thru canopy. Can you please let me know where I can find a replacement? Thank You!
Asked by: Hombow
Sounds like your system is still under warranty. Please call us at 1-800-322-1266 and we will be happy to help. B-Rex
Answered by: BREX
Date published: 2014-01-14

Is this set up still made? Seems unavailable everywhere.

Asked by: Kevgowing
Yes, the Half Moon tanks are still availalbe. The 10 gallon size is under the name of Tetra, the others are under the Marineland name. BREX
Answered by: BREX
Date published: 2013-11-25

Is it poossible to remove the canopy completely?

Is there anyway to remove the canopy completely and have the lamps and everything else needed attached on the side of the glass? We would prefer having the aquarium open and have some reefs sticking out. Is that an option for this aquarium? Thanks.
Asked by: goldfish
You could do that, but you would need to buy the LED Aquarium Light by Tetra, and moisture would eventually destroy the light. And that particular light is not suitable for a live reef. You could hang the Reef Capable, but again, moisture would be an issue. BREX
Answered by: BREX
Date published: 2013-11-12

Can you use the half moon for salt water

What additonal equiptment do you need for salt water tank in half moon. Is the whisper filtration good enough for salt water.
Asked by: dem719
Yes, you can. Type of filtration would be dependent upon what type of saltwater tank you wish to set up and which size of the half moon tanks you are enquiring about....but yes, the Whisper filters can be used for saltwater. You would want to change your filter media frequently, and clean the filter system monthly. You will need a good quality light if you wish to have live rock or corals, such as the 18-24" Reef Capable light. You would also want the Seaclone 100 Skimmer or something similar. BREX
Answered by: BREX
Date published: 2013-10-22
  • y_2018, m_4, d_19, h_8CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
  • cp_6, bvpage2n
  • co_hasquestionsanswers, tq_211
  • loc_en_US, sid_4386, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_marineland
11536 - 20 gal 
11535 - 30 gal