You know, these’re the 9 easiest fish to keep!

Hi folks, seen my fair share of setups, from the dazzling saltwater reefs teeming with exotic life to the humble freshwater tanks bubbling away in college dorms. And you know what? The truth is, creating a beautiful and thriving underwater world doesn’t have to be complicated. Especially not for beginners!

In fact, I remember this one college student who came into the pet store where I was working part-time back in the day. Wide-eyed and enthusiastic, but also completely overwhelmed by all the tanks and equipment. He wanted a slice of the aquatic world in his tiny dorm room, but all the fancy setups and chattering about water parameters had him spooked. That’s when I knew – there needs to be a better way to get beginners started!

This blog post is your answer. We’re diving headfirst into the world of uncommonly easy fish, the perfect finned companions for anyone who wants a stress-free and stunning aquarium experience. Forget about battling complex water chemistry or becoming a slave to a demanding feeding schedule. These nine fish are the easiest to keep alive and are all about effortless beauty and pure enjoyment.

Here’re the 9 fish…

Celestial Pearl Danio

Let’s kick things off with a real stunner – the Celestial Pearl Danio, or CPD for short. These little fish are living jewels, with iridescent scales that shimmer and shine like starlight dancing on water. And guess what? Unlike most tropical fish, these cool cats actually thrive in cooler water temperatures, making them a perfect pick for beginners who might not want to invest in a heater. They’re peaceful, easy on the eyes, and require minimal upkeep – the trifecta for beginner fish!

Unique traits and benefits

As we mentioned, CPDs boast stunning iridescent scales that seem to shimmer and change color as they catch the light. They’re like tiny living kaleidoscopes in your tank! But their beauty isn’t just skin-deep. These peaceful fish get along well with other calm tank mates, making them ideal for community aquariums. The real cherry on top, though, is their minimal care requirements. They’re incredibly hardy and adaptable, tolerating a wider range of water parameters than most tropical fish. This means you won’t have to be a water chemistry whiz to keep them happy and healthy.

Ideal tank setup

While these little gems aren’t picky, they do shine brightest in a planted tank. Live plants not only add a touch of nature to your mini underwater world, but they also provide hiding spots for the CPDs, who can be a bit shy at first. Remember, they prefer things a tad cooler than most tropical fish, so aim for a water temperature around 72°F. A simple heater with a thermostat can help you maintain this ideal range, but it’s not strictly necessary for these adaptable fish.

Potential Challenges

Just a heads up, CPDs can be a little shy at first, taking some time to warm up to their new digs. And breeding them ain’t exactly a walk in the park – you’ll need a well-established tank with specific water conditions.

A male scarlet badis swimming.
Scarlet Badis (Photo Courtesy: Wikimedia Commons)

Scarlet Badis

Alright, buckle up because we’re going mini! Next up are the Scarlet Badis, these fiery little fish that pack a punch of color in a package smaller than your thumb. Think of them as the superheroes of the nano tank world, perfectly suited for those who are short on space but big on aquatic dreams.

Unique traits and benefits

These Scarlet Badis truly live up to their name, boasting a vibrant red coloration that adds a fiery pop to any nano tank. Despite their bold looks, they’re peaceful fish who get along well with other calm tank mates.

And like the CPDs, they’re minimal feeders, requiring only a small amount of food each day. The real clincher, though? Their tiny size makes them perfect for those miniature aquatic worlds. Think of them as the perfect little residents for your nano tank – living proof that big things can come in small packages!

Ideal tank setup

While these fiery fellows aren’t demanding, they do appreciate a cozy environment. Densely planted tanks with plenty of hiding spots are ideal, as they can be a bit shy at first. Keep the water flow gentle, as these little fish aren’t fans of a current. Think of it as their own peaceful underwater oasis!

Potential challenges

Breeding Scarlet Badis can be tricky, requiring specific water conditions. Also, watch out for those fiery personalities – males can get territorial with each other!

Chili Rasbora

Looking for an even tinier splash of color for your nano tank? Then meet the Chili Rasbora! These fiery red fish are even smaller than Scarlet Badis, making them perfect for the most compact setups. Peaceful and easy on the eyes, they require minimal care, just like their fiery cousins.

Unique traits & benefits

These tiny dynamos truly live up to their name! Chili Rasboras are a fiery burst of red that will add a vibrant pop of color to even the most miniature nano tank. They might be small, but they hold their own in the temperament department, being peaceful community fish.

Just like their Scarlet Badis cousins, they’re incredibly low-maintenance, requiring minimal feeding and adapting well to a variety of water parameters. Think of them as the perfect little spicy addition to your nano tank – a fiery splash of color with a whole lot of personality in a tiny package!

Ideal tank setup

These little red hotties thrive in densely planted nano tanks with hiding spots and gentle water flow. Since they’re schooling fish, aim for a small group of 6-8 Chili Rasboras to bring out their vibrant colors and natural social behavior. They’re adaptable, but keeping the water on the cooler side (around 72°F) will mimic their natural habitat and make them extra happy.

Schooling behavior

Did you know these tiny firecrackers are actually schooling fish? That means they thrive in groups! Aim for a small shoal of 6-8 Chili Rasboras. Watching them dart around the tank together in a fiery red blur is a captivating sight. This social behavior not only adds a touch of life to your nano world, but it also brings out their most vibrant colors, making them even more dazzling!

A Pygmy catfish at the bottom.
Pygmy catfish (Photo Courtesy: AquaTuer, CC BY-SA 4.0, via Wikimedia Commons)

Pygmy Corydoras

Alright, time to dive down to the bottom of the tank (metaphorically, of course) and meet the Pygmy Corydoras! These adorable little catfish are the pint-sized superstars of the bottom-dwelling world. Don’t let their size fool you, though – they’re peaceful scavengers that will keep your tank clean while adding a ton of charm with their playful antics!

Unique traits & benefits

These pint-sized catfish are like the ultimate cleanup crew for your aquarium! With their whisker-twitching enthusiasm, they constantly sift through the substrate, gobbling up leftover food and hiding detritus that can muck up your tank. They’re the silent heroes of water world waste control! But their benefits go beyond just clean-up duty.

Pygmy Corydoras are peaceful little social butterflies who get along with pretty much everyone in the tank. Their playful antics, like darting around the bottom in search of treats or zooming in little spurts, are endlessly entertaining to watch. They add a ton of personality to the lower levels of your aquarium!

Ideal tank setup

These little bottom- feeders love a sandy substrate where they can wiggle and burrow freely in search of yummy treats. A tank with plenty of hiding spots, like live plants or driftwood, will make them feel extra secure.

Remember, they prefer cooler water temperatures (around 72°F) – a nice perk for those who don’t want to invest in a heater. Just like their fiery red cousins in the Chili Rasboras section, cooler water will mimic their natural habitat and keep them happy!

Potential challenges

Their tiny size can make them susceptible to being outcompeted for food by larger tank mates. Target feeding ensures they get their share!

Celestial Danio (Danio rerio)

Hold your horses, don’t let the name fool you! This isn’t just your average zebra fish you see darting around in science labs. The Celestial Danio (Danio rerio) is a stunner in its own right. These peaceful fish boast vibrant colors and interesting breeding behavior, making them a fun and rewarding choice for beginners who want a classic fish with a surprising twist!

Unique traits & benefits

Sure, you might recognize the Celestial Danio (Danio rerio) from their scientific cousin, the zebra fish. But don’t be fooled! These celestial beauties hold their own when it comes to dazzling looks. Their iridescent scales shimmer with shades of turquoise and purple, catching the light like miniature stained-glass windows.

But beyond their captivating appearance, Celestial Danios are a dream for beginners. They’re peaceful community fish, happy to co-exist with a variety of calm tank mates. And unlike many tropical fish, they thrive in slightly cooler water temperatures, making them a perfect choice for those who don’t want to fuss with heaters.

Ideal tank setup

Celestial Danios truly come alive in a planted tank. Live plants not only add a touch of nature to your mini underwater world, but they also provide hiding spots for these curious fish. They’re active swimmers, so provide some open space for them to zip around. Remember, they prefer cooler temperatures (around 72°F) – a heater isn’t strictly necessary, but it can help maintain this ideal range.

Potential challenges

Breeding Celestial Danios can require specific setups and water conditions. They can also be nippy towards slow-moving tank mates.

Mollies (Poecilia sphenops)

Alright, if you’re looking for a fish that brings the party to your tank, look no further than the Molly! These colorful characters come in a dazzling array of fins and body shapes, from classic sails to fancy balloon-like tails. They’re active swimmers with a playful personality, guaranteed to keep you entertained for hours on end.

And the best part? Mollies are super easy to care for, making them perfect for beginners who want a vibrant and lively addition to their underwater world!

Unique traits

Mollies are the ultimate conversation starters in the aquarium world! These vibrant fish come in a dazzling array of colors and fin shapes, from classic flowing sails to fancy balloon-like tails that seem to billow as they swim. Their playful personalities are another big draw. Mollies are active swimmers known for their energetic antics, like playful chasing and exploring every nook and cranny of their tank. They’re like the underwater cheerleaders, bringing a burst of life and movement to your aquatic world.

But don’t let their flashy looks fool you – Mollies are also incredibly beginner-friendly. They’re generally peaceful fish that get along well with other community tank mates, and their adaptable nature means they tolerate a wider range of water parameters compared to some tropical fish.

Ideal tank setup

Mollies love a spacious tank with plenty of room for them to zoom around and show off their impressive fins. Live plants are a plus, providing hiding spots for shy females and helping to maintain good water quality. They’re moderately brackish tolerant, meaning they can handle slightly saltier water than some freshwater fish.

But don’t worry, freshwater setups work just fine too! Just keep the water on the harder side and provide good filtration – these active eaters can create a bit more bioload.

Potential challenges

Mollies can be prolific breeders, so watch out for population explosions! They also have a reputation for nipping at plants, especially softer varieties.

Black neon tetra (Hyphessobrycon herbertaxelrodi)

Calling all shimmer enthusiasts! If you’re looking for a fish that adds a touch of elegance to your aquarium, look no further than the Black Neon Tetra. These little black beauties live up to their name with a striking black and white striped body highlighted by a vibrant red splash near their eye.

Don’t let their dazzling looks fool you, though – Black Neon Tetras are peaceful schoolers who are surprisingly easy to care for. They’re a perfect pick for beginners who want a splash of color and a whole lot of shimmer in their underwater world!

Unique traits & benefits

Black Neon Tetras are like living jewels in your tank! Their compact bodies are adorned with sleek, jet-black stripes that shimmer under the light. But the real showstopper is the vibrant splash of red near their eye, adding a dazzling pop of color. Despite their striking appearance, these peaceful fish are a dream for beginners.

They thrive in schools, so a small group will bring out their vibrant colors and natural social behavior. They’re not picky eaters and require minimal care, making them a low-maintenance way to add a touch of elegance to your aquarium. And like their Celestial Pearl Danio cousins, they prefer slightly cooler water temperatures, so you might not even need a heater!

Ideal tank setup

Black Neon Tetras truly come alive in a well-planted tank. Live plants not only soften the light, mimicking their natural habitat, but also provide hiding spots for these schooling fish. They’re relatively peaceful, but tank mates should be on the smaller side to avoid any fin nipping.

Remember, they prefer cooler temperatures (around 72°F) and slightly acidic water. A school of these little black beauties with a dash of red will add a touch of elegance and movement to any freshwater aquarium.

Potential challenges

These little guys can be shy at first and may nip fins of slow-moving tank mates. A well-sized school helps them feel secure!

Kuhli Loach (Pangio kuhlii)

Kuhli Loach, an eel-like wonder with a surprising personality. These little guys may be shy at first, but they’re peaceful scavengers who add tons of charm with their playful antics as they scoot around the tank!

Unique traits & benefits

Kuhli Loaches are the ultimate explorers of the aquarium underworld! These slender, eel-like fish dart around the bottom layers, sifting through the substrate with their whiskered snouts. Nicknamed “coollie loaches” for a reason, they prefer cooler water temperatures, making them a perfect fit for those who don’t want to crank up the heater.

Despite their shy nature, Kuhli Loaches are surprisingly social. They thrive in groups and their playful antics, like zooming around in bursts or wrestling with tank mates (without causing any harm!), are endlessly entertaining to watch. Think of them as the janitorial crew with a side hustle of being adorable goofballs. They’ll keep your tank clean and bring a ton of personality to the bottom level!

Ideal tank setup

Kuhli Loaches love to burrow and sift, so a soft sandy substrate is a must. They’re shy folks, so provide plenty of hiding spots like live plants or driftwood. Remember, they prefer cooler water (around 72°F) – a perk for those who don’t want a heater. Since they’re nocturnal feeders, consider adding a low-light period to mimic their natural habits and encourage them to come out for a snack!

Potential challenges

Kuhli Loaches can be escape artists! A tight-fitting lid is a must. Their small size also means target feeding is important to ensure they get enough to eat.

A cherry barb in between aquarium plants.
Cherry barb (Photo Courtesy: Brian Gratwicke, CC BY 2.0, via Wikimedia Commons)

Cherry barb (Puntius titteya)

Calling all color enthusiasts! If you’re looking for a fish that injects some fiery personality into your freshwater tank, look no further than the Cherry Barb. These active little fish come in a dazzling array of red and orange hues, making them a guaranteed conversation starter.

Despite their vibrant looks, Cherry Barbs are surprisingly peaceful community fish. They’re also relatively easy to care for, making them perfect for beginners who want to add a burst of color and a touch of spice to their underwater world!

Unique traits

Cherry Barbs are living flames in your aquarium! Their bodies are adorned with vibrant shades of red and orange, adding a fiery pop of color that will definitely turn heads. But these little firecrackers aren’t just about looks – they’re a shoaling fish, meaning they thrive in groups.

Watching a school of Cherry Barbs dart around the tank in a fiery red blur is a captivating sight. Beyond their dazzling appearance, Cherry Barbs are peaceful community fish that get along well with other calm tank mates. They’re also surprisingly low-maintenance.

These active swimmers are relatively easy to feed and adaptable to a wider range of water parameters compared to some tropical fish. Think of them as the perfect way to add a splash of color, a burst of personality, and a touch of easy-going charm to your freshwater tank!

Ideal tank setup

Cherry Barbs truly come alive in a planted tank. Live plants not only add a touch of nature to your underwater world, but they also provide hiding spots for these active swimmers. They love to zip and zag around, so provide some open space for them to show off their fiery fins.

Remember, they do best in cooler water (around 72°F), so a heater isn’t strictly necessary. Just keep the water clean and well-oxygenated, and these little red rockets will thrive!

Potential challenges

Cherry Barbs can be nippy towards slow-moving tank mates. Target feeding ensures everyone gets enough to eat!

Setting up your beginner-friendly aquarium

Alright, you’ve picked out your perfect fish – now it’s time to create their underwater paradise! Setting up a freshwater tank might seem daunting, but don’t worry, it’s easier than you think.

Here’s a quick guide to get you started:

Tank Size

For beginners, a 10-20 gallon tank is a great choice. It’s large enough to house a small community of fish while still being manageable to clean and maintain.

Substrate & Filtration

The substrate is the gravel or sand at the bottom of the tank. Choose a material that’s good for your fish (like sand for bottom dwellers) and rinse it thoroughly. Filtration is key for clean water – a good filter will remove waste and keep your tank healthy.

Cycling Your Tank

This might be the most important step, even though it doesn’t involve fish! Cycling allows beneficial bacteria to grow in your tank, which breaks down fish waste. It can take a few weeks, but it’s worth the wait for a healthy and stable environment for your finned friends.

Remember, a happy and healthy tank is a beautiful tank. So take your time, do your research, and soon you’ll be enjoying the wonders of your own underwater world!

Essential fish care for beginners

Now that your tank is cycled and sparkling clean, it’s time to welcome your new finned friends! Taking care of your fish isn’t complicated, but a little routine goes a long way. Here are the basics:

Feeding

Most tropical fish eat flakes or pellets. Feed them a small amount 1-2 times a day, and avoid overfeeding – their tummies are tiny! Observe their feeding behavior – if food goes uneaten, adjust the amount or feeding frequency.

Water changes

Just like us, fish need clean water! Aim for weekly water changes of around 25% of the tank’s volume. Siphon out some water while simultaneously replacing it with fresh, treated tap water that’s at the same temperature.

Tank maintenance

Weekly or bi-weekly tank maintenance keeps your aquarium sparkling. This might involve wiping down the tank walls to remove algae, cleaning the filter media (according to the manufacturer’s instructions), and vacuuming the substrate to remove debris.

Monitoring & Stability

Your fish thrive on consistency. Invest in a basic test kit to monitor water temperature and pH (acidity level). Keeping these parameters stable reduces stress on your fish and helps prevent illness.

Remember, a clean and stable environment is key to happy and healthy fish. By following these simple tips, you’ll be well on your way to becoming an aquarium pro in no time!

Top tips for long-lasting success with your uncommonly easy fish

You’ve got the tank, you’ve got the knowledge – now it’s time to set your fish up for long-term success! Here are some golden nuggets for beginner aquarists:

Start small, scale up

Don’t overcrowd your tank! Begin with a smaller number of fish and gradually add more as your tank matures.

Choose compatible tank mates

Not all fins are created equal! Research your fish and pick tank mates with similar temperaments and size requirements.

Resist the feeding frenzy

A little goes a long way! Overfeeding clouds your water and can harm your fish. Stick to small portions and observe their eating habits.

Keep it clean

Regular water changes and filter maintenance are your best friends for crystal-clear water and happy fish.

Monitor your marvels

Pay attention to your fish! Observe their behavior – any unusual swimming patterns or changes in appetite could indicate stress or illness.

Research responsibly

Knowledge is power! Keep learning about your fish and their care requirements.

Embrace the live plants

Live plants add beauty, provide hiding spots, and help with water quality – a win-win!

Don’t skip the cycle

Patience is a virtue! Cycling your tank ensures a healthy environment for your new underwater friends.

Make it yours

Aquariums are a reflection of you! Personalize your tank decor and create an underwater world you love.

Final Thoughts

So there you have it! Choosing these nine easy fish is a fantastic way to dip your toes into the rewarding hobby of aquariums. With a little planning and these beginner-friendly options, you’ll be well on your way to creating a thriving underwater world. So grab your tank, pick your fish, and get ready to be amazed!

Happy fishkeeping!