Marina LED Aquarium Kit, 20-gal

By Marina
Rated 3.8788 out of 5 stars
$139.99Chewy Price
$189.99Chewy Price

In Stock
FREE 1-3 day delivery

Frequently Bought Together

This Item – Marina LED Aquarium Kit, 20-gal
Rated 3.8788 out of 5 stars
$139.99Chewy Price
Eheim Jager Thermostat Aquarium Heater, 100-watt
Rated 4.0286 out of 5 stars
$19.96Chewy Price
Marina Slim Carbon Filter Cartridge, 3 count
Rated 4.4615 out of 5 stars
$6.99Chewy Price
Total Price: $166.94

About This Item


  • Features a Marina Slim S20 clip-on filter with quick-change filter cartridges for easy maintenance in less than a minute.
  • Long-lasting, natural daylight-effect LED lighting is incorporated into the aquarium canopy to enhance the brilliance of your fish, plants and décor.
  • Kit comes complete with an aquarium care guide and everything you need to set up, stock and maintain your beautiful new fish tank.
  • Makes a great gift for children interested in learning about the fish hobby and pet responsibility.
  • 20-gallon glass aquarium measures 24 x 16.5 x 12.5 inches; recommended for goldfish and a wide variety of tropical community fish species.

See More


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Fish TypeBetta, Cichlid, Goldfish, Tropical FreshwaterMarine Fish, Tropical FreshwaterMarine Fish, Tropical FreshwaterTropical FreshwaterBetta, Goldfish, Marine Fish...
Capacity (Max)20-gallon20-gal10-gal5-gallon17.11-gal
Aquarium TypeFreshwaterSaltwater, FreshwaterSaltwater, FreshwaterFreshwaterFreshwater

Questions & Answers

33 Customer Questions

where can I get replacement filters
Answer by ChewyJun 09, 2018
The filters that correspond with this aquarium kit is the Marina Slim Filter Carbon Cartridge, 3 count.

Does this tank have a day and night option on the lighting?
Answer by ChewyJun 14, 2021
This aquarium features a long-lasting, natural daylight effect LED lighting module incorporated into aquarium canopy. It does not have a night time option.

Can i use this tank for my two turtles?
Answer by ChewyNov 15, 2018
This aquarium kit is not recommended for turtles as they require a heating lamp and a landing dock.

How much gravel would be needed with a 20 gallon aquarium?
Answer by ChewyMar 22, 2018
Determining how much substrate to buy for your new aquarium depends on the size and shape of your tank, as well as the depth of the substrate bed you wish to achieve. We suggest 1 pound of substrate per gallon, to achieve a 1 inch bed or 2 pounds per gallon, for a 2 inch deep bed.

ReviewsWrite a Review

Rated 3.8788 out of 5 stars
33 Ratings
Would recommend to a friend

33 Customer Reviews

Rated 1 out of 5 stars
By Peter on Sep 19, 2023

Not worth the money

You're better off buying everything separately, as I ended up replacing everything aside from the tank. Comes with a cheap LED light, a poorly designed hood with lots of gaps for fish and invertebrates to escape and doesn't even have a hinge. the filter is super loud and the medium must be replaced frequently. Also it doesn't even include a heater. Complete and utter waste money 0/10 never recommend

Rated 5 out of 5 stars
By Marj80 on Jan 16, 2023

Beautiful Fish Tank?

I'm so glad I purchased this fish tank from chewy. It shipped quick and arrived in perfect condition, despite shipping damage to the box. So easy to set up, the tank and accessories are good quality. I'm very happy with the filter, it's a beast. I highly recommend this product!

Rated 3 out of 5 stars
By MaLai77 on Jan 5, 2023

Pourquoi acheter ca

Petit fil pour la lumiere. Et le bloc a la prise surchauffe. Apres quelques heures seulement. Ne partez pas avec la lumiere allumee. Ils ne font pas de 15 gallons?

Rated 4 out of 5 stars
By Cattopia on Apr 3, 2022

Mostly Satisfied so 4.5

Arrived in good condition and wouldn’t rate it poorly for a botched delivery like a few of them I’ve read. Love the price, overall quality and especially the slim filter. The filter is extremely efficient and keeps it crystal clear. As far as room for cords and air hoses they fit nicely in the opening provided and I was able to fit the air hose just next to the filter up top where there is a small gap between the filter and the hood. Because it doesn’t have the secondary option of the nighttime blue light like their Fluval Spec, I bought a small submersible one and attached it just under the outflow of the filter inside the aquarium. Great for transitioning to nighttime as it has a timer also. Just started planting for a natural landscape so it’s a work in progress. Cons are no hinge on hood so you have to remove it to service the interior. Simple light without options. I did contact the manufacturer and asked if there was a different hood available and there isn’t. Overall I’m really satisfied. Great buy!

Rated 5 out of 5 stars
By Melody on May 4, 2022

Wonderful aquarium!

Bought this for 2 small goldfish. It's a great size and looks nice in my bedroom. The filters work really well. The only issue I've had is that it is so reflective on the sides. Probably need a background to prevent that. But this is an awesome aquarium. Highly recommend.

Rated 5 out of 5 stars
By Skyler on Dec 10, 2021

amazing fish tank!

So first I will say this is an amazing tank for the price! I got it while they were having the cyber Monday sale so it was alittle less than normal but even with that being said most fish tanks I found that came with setups for a 20 gallon were around $200 if not just alittle bit less than that. I haven’t put water in it yet because I am gathering everything I need first but if I can edit this I will let you know later. At first I didn’t think the tank was going to be in one piece when it arrived. The box was destroyed and it wasnt sealed, the top was open. When I opened it everything was still completely in tact and looked great. It is always a stressful think having something made of glass delivered to you but luckily everything was fine for me. I will warn you it does not come with a heater so if you are needing one you will have to buy it separately. Great tank! Thank you so much!

Rated 1 out of 5 stars
By Arthur on Jan 10, 2022


Marina tank was a disaster. Tank came all creaked. Glass was a mess. I called Chewy. They not only apologized but are sending me an even better one. Chewy’s rep on the phone was great and their service is terrific. I will definitely use them again.

Rated 5 out of 5 stars
By Vicky on Jan 26, 2022

No regrets buying

Came in decent time. No problem after set up. Looks very nice.

Rated 5 out of 5 stars
By Krisee on Dec 20, 2021

Fish tank and assessories

Great as always, have never had a problem with anything I've ordered. Love

Rated 4 out of 5 stars
By Mandy on Jun 29, 2021

Great Tank

Pros: -extremely easy to set up. -the slim filter is nice looking and easy to put together and install. The color of the filter is not as distracting as full black. -the tank itself is fairly attractive and sturdy. -trusted brand with great starter products -bright LED light Cons: -this starter kit DOES NOT come with a heater. Putting that in caps so you know to purchase one separately. I was fine with this because I wanted a higher quality thermostat heater. -I wish the lid was attached with a hinge because you have to remove the whole lid and put it on the table or floor in order to get inside. Plus, there’s condensation on the lid so then you get water all over the place when taking it off. Comments: -I have a 5 gallon Marina start up kit and its a slim 10 filter, which means it has two slots for the inserts instead of four like the slim 20 (which comes in this kit). I find it interesting that Marina sells their filter inserts in packs of three. That means one filter package will never cover changing all four slots in the slim 20 filter (you never want to change all four at the same time anyway, so it’s fine). I just thought it was weird for them to package it with three when the filters come with two and four slots. -Would be nice to have another opening on the other side of the lid for wires or tubes. You can see that my lid has to sit on top of the bubbler tube because there is no opening