Whether you always wanted a big beautiful tank or simply think that a small tank would restrict your creativity, a 50 gallon aquarium is a wonderful choice that will give you so many options.
This size gives you so much flexibility and freedom to keep many different types of fish. From freshwater tanks to paludariums – this one can do it all.
Or maybe you want to maintain a reef tan, no problem. There is plenty of space to replicate the ocean waters in this tank.
In this article we cover everything you need to know about 50 gallon tanks, from stocking choices to the best tanks currently on the market and much more…
Table of Contents
- All You Need to Know About 50 Gallon Fish Tanks
- The Best 50 Gallon Tanks Reviewed
- Tank Equipment
- 50 Gallon Fish Tank Stocking Suggestions
- How To Set Up A 50 Gallon Fish Tank
All You Need to Know About 50 Gallon Fish Tanks
A 50 gallon aquarium is a very versatile tank – it provides enough space for a large number of fish as well as several even bigger types of plants.
It’s a very flexible choice, allowing you to experiment with multiple types of setups. You can consider a species only tank, community tank or even a paludarium (more on setups later).
Probably the first shape that comes to mind when you think about this tank is a rectangle. However, now you can find square tanks, circular tanks or even one with a gradient!
What is important to remember is that once in a while you will need to allocate quite a bit of time for cleaning and maintaining the tank.
To make this easier there are various tools available, starting from ordinary pumps to help with draining to magnetic sponges to make cleaning easier. Alternatively, you can consider species that will help you with this task, like Plecos or Corydoras.
These tanks are easily found and are a popular with beginners and veteran aquarium hobbyists alike.
The price will depend on your choice of supplier and also where you live, as shipping can bump up the cost. On average, you will be looking at $200+, although this is generally the price for the bottom-tier tanks. You will also need to buy additional equipment – this will vary between $75 and $125.
50 Gallon Fish Tank Dimensions
Dimensions (W x L x H) of a 50 gallon tank should ideally add up to 11550 inches cubed. Usually it would measure 36″ in length, 18″ in width and 19″ in height.
The length here plays an important role, as it would be the primary factor determining the setup of your tank and also what species you will be able to keep- the longer, the better.
The Best 50 Gallon Tanks Reviewed
SeaClear Acrylic Combo Aquarium
This is the choice for a 50 gallon aquarium. It is a combo set, meaning that it includes both the tank, and reflector and a light fixture.
The tank is made from acrylic which is stronger than glass and around half the weight. For a tank this size, weight matters!
Acrylic makes it less prone to scratches and cracks, so this tank is perfect for busy homes with children and pets. The seams are pretty much invisible, and it comes with a lifetime guarantee. It also comes in three different color options; black, clear, or a blue background.
You will need to add all your own equipment to this tank which is ideal if you have a preferred brand for heaters and filters.
- Comes with the best warranty in the industry.
- Very reasonably priced.
- Acrylic is very clear allowing you to see your fish perfectly.
- This tank holds its temperature better than glass tanks.
- Only has a light fixture, no light.
- You need to move the light fixture to feed the fish.
- It is difficult to find a stand which perfectly fits this tank.
SeaClear Acrylic 50 Gallon Tank
Our second choice is another SeaClear tank. They pride themselves on providing the best quality acrylic aquariums around.
This kit is ideal for beginners who want a simple setup and don’t want to add their own equipment. It comes with the tank, built in filtration, and a hood with inbuilt lighting.
The system has a wet/dry biological filtration system which is built into the back of the aquarium. There are chambers to accommodate biological, mechanical and chemical filter media. There is also space to include your own heater and protein skimmer if you want to set up a saltwater tank.
This all in one aquarium is really simple and easy to set up, you just need to add water.
The dimensions of this tank are 36 x 15 x 16 inches.
- Made from Acrylic which is stronger than glass and harder to scratch.
- The setup is really easy – it even comes with picture instructions.
- There is plenty of space to add more equipment in the back.
- This tank is lightweight and doesn’t weigh as much a as glass tank.
- The openings at the top are quite small.
- Can be tricky to feed the fish without moving light fixture.
- You need to add your own lighting.
Starfire 50 Gallon Aquarium
This tank is ideal for aquarists who want to set up a reef or marine tank.
It comes as a complete package and includes the choice of a black or white cabinet. The cabinet is heavy duty and has two hinged doors.
This package also includes a sump, skimmer and return pump, as well as all the tubing piping, bulkheads and filter media which you need to get started with.
One of the only things which is not included is the light, which you will have to buy additionally.
Tank dimensions are: 24 x 24 x 20 inches, so its almost a perfect cube shape.
- This is a premium quality tank.
- The sump is fantastic quality.
- Great value for money.
- The stand comes assembled.
- The overflow is quite bulky.
- There are no instructions for the sump.
- The skimmer will need replacing if you plan on heavily stocking your tank.
The heater is by far one of the most important pieces of equipment in your tank.
Before getting a heater, make sure that you know what temperatures your fish need, and make sure all your inhabitants can tolerate the same temperature range.
If you are sticking to the popular tropical setup, then the temperature is likely going to be between 75°F and 82.5°F. You can easily find a suitable tank heater online or in a store.
You should be aware of what your fish require in terms of water filtration. Remember that filters not only take care of the waste but most of the time create a current as well.
In a 50 gallon aquarium you can install almost any type of filter; internal or external.
The thing you should pay attention to though is their filtration capacity. Preferably, your filter should cycle the water in the tank about 3-4 times in an hour.
This is optional, but very handy.
Aquarium stands are used to stabilize large tanks and also to organize and store equipment – many stands have a plumbing compartment right underneath.
They come in all shapes and sizes.
Ultimately, it all comes down to where your aquarium is going to be showcased. If that is your house or apartment, a wooden stand will probably look the best.
The hood for a 50 gallon fish tank is another handy addition. It becomes even more practical when you have very active fish.
If you don’t have a hood, fish can end up outside the tank, easily leaping out of the water and over the wall.
Deciding which one you need is key to building a well-rounded tank. As good lighting is usually needed, choosing the right hood becomes even more important.
50 Gallon Fish Tank Stocking Suggestions
You can experiment a lot with a tank this size – it will be a wonderful choice for a community, species-only, reef tank, paludarium or a simple saltwater aquarium.
The size of this tank allows you to keep a good range of different fish. You can even keep some other non-fish inhabitants, such as crabs, shrimps or snails. All of this gives you an incredible amount of freedom!
50 gallons is plenty of room for the majority of species. Whatever fish you want, chances are they are compatible with a tank this size. Let’s look at ideal fish for a tank like this before discussing setup options.
If you are not big on Cichlids, consider another large group – Gouramis. They offer the same amount of color and liveliness, just without the aggression.
On average you will be able to keep around 20 Gouramis in this tank.
Take a look at Paradise Fish, Pearl Gourami, Snakeskin Gouramis or Red-backed Paradise. The best part about keeping small fish in a larger tank is that you can fit a lot more in.
Alternatively, you can go back to the roots and get yourself a couple of goldfish. To keep it fresh, try a pair of Orandas.
Remember that you can always go marine. There are a lot of good-looking saltwater fish that will fit nicely into your tank. The iconic Blue Tang or one of the most interesting and vivid fish in the world, Mandarinfish, will be great in a 50 gallon set up.
Now that you know your stocking choices, let’s talk about setup choices.
One of the most popular choices (especially for a bigger tank like this) is a community aquarium.
Community tanks usually consist of several different species, that peacefully swim alongside each other and a couple of plants.
Most of the fish that we have mentioned above will be more than suitable for this kind of setup.
However, you will first need to decide whether you want a freshwater or a marine aquarium. The plant choice will also depend on that.
Species Only Tank
Another good setup idea is a species-only aquarium. This is usually done when you have particularly large fish that you want to keep or if you are just obsessed with one species.
Generally, this is going to be fish like Angelfish, Oscar fish or other Astronotus fish.
Alternatively, it can be aggressive fish that don’t really get along well with each other, such as Bettas or Barbs. You can explore the great variety of other fish available and decide for yourself – just remember to make sure that you have enough space.
Last but not least is the Paludarium setup. This is a 50/50 and contains both aquatic and terrestrial plants as well as animals. It can also be home to a range of both freshwater and brackish fish.
It is entirely up to you to decide how you want to set it up, what animals to get and what plants to place. By far the biggest advantage of this setup is the diversity of life that you can include – fish, turtles, snails, reptiles and even small crustaceans!
Just remember you should not focus too much on any part in particular – keep it varied and modest.
Even though you will only have a couple of individuals species-wise, combined, all of the animals together will bring a whole lot of diversity into your aquarium.
How To Set Up A 50 Gallon Fish Tank
Setting up a 50 gallon tank is quite easy. There are only a couple of steps you should follow, the rest of the process will depend on the type of tank you’re trying to establish.
First, you need to decide on the setup and whether your aquarium will be saltwater or freshwater.
This is important because some of the equipment required will be slightly different. And of course, for a marine tank you will need to get the appropriate amount of salt.
When you get the tank, make sure you clean it properly. Tanks that come from stores may seem sterile, but they may not be.
After cleaning the tank it’s time to set it up.
Firstly, you will need to find a suitable place for it. These tanks are heavy to move when they are empty, let alone full of water! So make sure its level and is placed away from direct sunlight and any heat sources.
After the tank is where you want it to be, it’s time to add the substrate.
Depending on the substrate, apply a cover for the base or leave it uncovered. Now, simply add the substrate and distribute it evenly, so it covers the bottom of your aquarium.
Now that the substrate is done, let’s talk about other essentials.
When it comes to choosing the equipment, make sure to check the water requirements of your fish, plants as well as any other aquarium inhabitants. Normally, a powerful internal or external filter with a quality filtering medium and a good light are needed.
In addition to the equipment, you should also consider getting some supplements to maintain water chemistry. In larger tanks like this, relying only on a filter might not be enough. Supplements that support stable water chemistry can include anything from anti-algae to nutrients.
Finally we get to the fun part, adding your fish. Make sure that water conditions (temperature, chemistry, nutrients, substrate, furnishing, lighting) in the tank are stable and safe before adding them.
To avoid stressing your fish, don’t take the fish out of their original packaging straight away. Leave them in their bag and every ten minutes or so, slowly add tank water until the bag is full.
Then you can release the fish into the water.
A 50 gallon tank is an ideal choice regardless of your previous experience. It can support a wide range of setups, so there is no need to worry about restraining yourself.
Whether its a species only, or a community tank, you will be able to successfully arrange all that in this tank. The only thing that might cause some inconvenience is cleaning, especially if you keep very demanding or large fish.
That should not scare you away though, with the right equipment this will take nearly as much time as cleaning a 5 gallon tank.
Our favourite 50 gallon tank is SeaClear’s Combo Aquarium, it is the perfect choice for most people.
Let us know in the comments section below if you have any questions…