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
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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.

I just purchased the half moon 20 gallon tank with LED day/night lights and was wondering what the watts per gallon on this item is? what the watts

Asked by: Kkeeps2011
For years the Watts per gallon rule was used as a short cut to help people know which light was suitable for their needs. It was really a lucky coincidence that there was a correlation between Watts (energy consumed) and PAR/LUX (light energy produced). Watts are a measure of energy provided to the LED to create light. It does not measure how much light is actually being produced. Lumens, PAR and LUX are how light energy is measured. There are LEDs in the market that produce 40 Lumens (light energy) per Watt and there are LEDs that produce as high as 100 lumens per Watt. What is important for coral growth are the measurements PAR and LUX, not Watts consumed. PAR and LUX measure how much LIGHT energy is reaching the plants and coral. To put it in other terms: You have two cars. One car that goes 65 MPH and uses 16 gallons of gas per mile and the other car that goes 65 MPH and uses 6 gallons of gas per mile. They both go 65 MPH but one uses less gas to do so. Please visit our lighting overview for more information. http://www.marineland.com/LEDp2.asp...
Answered by: Dana
Date published: 2013-10-22

I have a 10g half moon tank and I am looking to get a bigger one

i have a 10g half moon marineland tank that I purchased just over 1 year ago and I am really happy with it but i am now looking to get a larger one. When I checked out your specs on your web site the 10g is different and larger. My tank is 17.5 height x 17.5width x 11depth in inches. Just wondering if the specs you provide are for the tank itself or packaging it comes in? If it is the packaging can you provide the 20g and 30g actual tanks specs. Thanks
Asked by: Chubby
Hi, Thanks for asking your question. The dimensions for the Half Moon 10 were for the product in the packaging and the dimensions for the 20 and 30 were for the product without packaging. I've updated the specs and sizes to be consistent and now all dimensions of the dimensions for these are without packaging. The dims for the 20g are 23" x 12" x 24" and for the 30g are 26" x 14" x 28". Good luck with your fish keeping!
Answered by: Susan
Date published: 2015-01-13

Can I replace the cartridge filter with a biowheel in the Halfmoon aquarium?

I want to buy the half moon aquarium but I kinda like the biowheel idea
Asked by: Bettarescuer
You can absolutely change the included internal filtration with our Penguin or Emperor Bio-Wheel hang on the back filtration. There are several models depending on what size Half Moon aquarium you have. See product page links below for more specs.
Answered by: Dana
Date published: 2013-10-22

Which of the panels on the 30 gallon halfmoon aqaurium are tempered?

Asked by: George
Hi, None of the panels of the Half Moon aquariums are tempered.
Answered by: Susan
Date published: 2013-10-22

We have a 10 gal half moon tank, but no other parts. Is it possible ot order a lid and/or light?

Asked by: IndianaDad
Hi, yes you can get a replacement lid and light. My suggestion would be to get the Marineland LED Aquarium light. This light comes with Blue LEDs for the nightlight effect and rubber bumpers that you can put on so it will sit on top of the lid and not slide around. It will do a great job lighting the 10g Half Moon. The item number is 32996. You can find this light at your local PetSmart or independent retailer. The item number for the lid is R03182. You can order this item by calling Customer Service at 800.322.1266.
Answered by: Susan
Date published: 2013-10-22

What are the dimensions of the Half Moon 10, 20 & 30 Gallon tanks?

Asked by: GTS1
Hi, I just published the specs and sizes on the Marineland website for these aquariums. Here is the link. If you have any other questions, please let us know. http://www.marineland.com/uploadedFiles/Marineland/Products/SAST%20Half%20Moon%20Specs%20and%20Sizes.pdf
Answered by: Susan
Date published: 2013-10-22

Can I order a replacement light fixture (mountable LED) for the 10 gallon half-moon tank?

Switch no longer works.
Asked by: Jmoe
Hi, Sorry that you're having a problem with the switch on the LED light. We do have these as replacement parts. The item number is R29234-601. This may be under warranty and could be replaced at no charge. Please call Customer Service at 800.322.1266 to determine if this is the case. Another option that you may consider would be to upgrade the light that came with the kit with the Marineland LED Aquarium Light. This version has 42 white LEDs and 3 blue LEDs for a nightlight effect. I am certain that you'd be happy with the brightness of this light. It sits on top of the plastic canopy and comes with 4 rubber bumpers to prevent it from sliding around. The item number is 32996 and can be found at aquatic retailers across the country. Either way, enjoy your aquarium.
Answered by: Susan
Date published: 2013-10-22

Do you have the marineland hafe moon aquariums in 15 gals. Also same aquarium 10 and 15 gal w/sunlight and moonlight LED light system?

Asked by: Jenny
We have the Half Moon aquariums in 10, 20 and 30 gallon versions. We also have an assortment of Marineland LED Aquarium kits in a variety of sizes that have both the white and blue LED lights. Please see the attached product page for more specifics on those offerings. Thanks.
Answered by: Dana
Date published: 2013-10-22
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11536 - 20 gal 
11535 - 30 gal