Good Fish To Have As Pets – The Ultimate Beginner’S Guide To A
Setting up your first aquarium is an incredibly exciting journey, but it often starts with a single, daunting question: which species should you choose? You want a tank that looks vibrant and full of life, but you also want inhabitants that are hardy enough to forgive a few “beginner mistakes.” Finding good fish to have as pets shouldn’t be a stressful guessing game at the local pet store.
In this guide, I am going to share my years of experience in the hobby to help you navigate the aisles of your local fish store with confidence. We will cover the most resilient species, their unique personalities, and the essential care tips you need to keep them thriving. By the end of this article, you’ll have a clear roadmap to building a beautiful, balanced, and sustainable aquatic world.
Understanding the Basics Before You Buy
Before we dive into the specific species, we need to talk about the “foundation” of your hobby. Many new keepers make the mistake of picking the fish first and the tank second. This often leads to overstocking or putting a high-energy fish in a space that is far too small for their needs.
The Importance of Tank Size
When looking for good fish to have as pets, remember that bigger is often easier. A larger volume of water is more chemically stable than a small one. While a 5-gallon tank looks cute, a 20-gallon “long” tank is actually the perfect sweet spot for most beginners because it offers more room for error regarding water quality.
The Nitrogen Cycle: Your Secret Weapon
You cannot simply add water and fish on the same day. You must “cycle” your tank first. This process involves growing beneficial bacteria that turn toxic fish waste (ammonia) into less harmful substances (nitrates). Without this biological filter, even the hardiest fish will struggle to survive their first week in your home.
The Best Good Fish to Have as Pets for Beginners
Now, let’s get to the fun part—choosing your new aquatic friends! These species have been selected because they are widely available, relatively hardy, and possess peaceful temperaments that make them perfect for community living.
1. The Iconic Betta Fish (Betta splendens)
Bettas are perhaps the most popular choice for new hobbyists, and for good reason. They are incredibly intelligent, often recognizing their owners and even “begging” for food. They come in every color of the rainbow and have stunning, flowing fins that add instant elegance to any room.
However, don’t be fooled by the tiny “betta bowls” sold in stores. To truly see a Betta thrive, you should provide at least a 5-gallon tank with a gentle filter and a heater. Because they are labyrinth breathers, they can take air from the surface, but they still require clean, warm water to prevent diseases like fin rot.
2. Fancy Guppies (Poecilia reticulata)
If you want a tank that is constantly in motion, Guppies are the way to go. These fish are active, colorful, and very easy to care for. They are livebearers, meaning they give birth to free-swimming fry rather than laying eggs. If you have both males and females, you will likely see babies within a month!
Guppies are very social and do best in small groups. Just keep an eye on your male-to-female ratio. I usually recommend one male for every two or three females to ensure the ladies don’t get stressed by the males’ constant attention. They are truly good fish to have as pets if you enjoy observing natural breeding behaviors.
3. Neon Tetras (Paracheirodon innesi)
Nothing beats the sight of a school of Neon Tetras moving in unison. Their electric blue and red stripes seem to glow against a backdrop of green aquatic plants. These are peaceful schooling fish that require the company of their own kind to feel safe.
To see them at their best, keep them in a group of at least six to ten individuals. They prefer slightly softer water and plenty of hiding spots. When they feel secure, their colors become much more vivid, making them a stunning centerpiece for a 10 or 20-gallon community aquarium.
Hardy Bottom Dwellers for a Clean Tank
A well-rounded aquarium includes fish that occupy different levels of the water column. While Tetras and Guppies swim in the middle and top, bottom dwellers add interest to the substrate and can even help keep the tank tidy by eating leftover food.
Corydora Catfish: The Social Scavengers
Corydoras, or “Corys,” are arguably the most charming fish in the hobby. They are peaceful, armored catfish that spend their days wiggling across the bottom of the tank in search of snacks. They have adorable whiskers (barbels) that they use to sift through the sand.
It is vital to use a sandy substrate or very smooth gravel for Corys to protect their sensitive barbels. They are also highly social and should be kept in groups of at least four or five. Watching a “pile” of Corys resting together is one of the most heartwarming sights in fish keeping.
The Resilient Bristlenose Pleco
If you are worried about algae, the Bristlenose Pleco is your best friend. Unlike the “Common Pleco” which grows to a massive two feet long, the Bristlenose stays at a manageable 4-5 inches. They are excellent at grazing on algae and look quite prehistoric with their unique facial “bristles.”
Make sure to provide them with a piece of natural driftwood. They actually need to rasp on wood to aid their digestion. They are nocturnal, so don’t be surprised if they hide during the day and come out to explore once the lights go down.
Creating a Harmonious Community Aquarium
When selecting good fish to have as pets, compatibility is the “secret sauce” of success. You cannot simply throw any two fish together and hope for the best. You must consider their temperament, water parameter requirements, and adult size.
Temperature and pH Matching
Most of the fish mentioned above are tropical, meaning they require a heater to keep the water between 75°F and 80°F. However, some fish prefer cooler water, while others like it very warm. Always check that your chosen species share the same comfort zone. A reliable digital thermometer is a must-have tool for any serious aquarist.
Space and Territory
Even peaceful fish can become aggressive if they feel cramped. Think of your aquarium like a shared apartment. If everyone is crowded into the kitchen, tempers will flare. By choosing fish that occupy different levels (Top, Middle, Bottom), you maximize the available space and reduce stress among your inhabitants.
Why Live Plants Make Your Fish Happier
I always encourage new hobbyists to include at least a few live plants in their setup. While plastic plants are easy, live plants provide several massive benefits that make your job as a keeper much easier. They act as a natural filter, absorbing nitrates and carbon dioxide while pumping oxygen back into the water.
Beginner-friendly plants like Anubias, Java Fern, and Amazon Swords are incredibly tough. They provide hiding spots for shy fish and a natural grazing ground for shrimp and snails. Plus, there is nothing more satisfying than seeing your underwater garden grow alongside your fish!
Essential Equipment for Success
To keep your good fish to have as pets healthy, you need more than just a glass box. Investing in quality equipment from the start will save you money and heartache in the long run. Here is a quick checklist of what I recommend for every beginner setup:
- A Quality Filter: Choose one rated for a slightly larger tank than yours to ensure crystal-clear water.
- Adjustable Heater: Consistency is key; fluctuating temperatures can weaken a fish’s immune system.
- LED Lighting: Modern LEDs can simulate day and night cycles, which helps regulate your fish’s internal clock.
- Water Conditioner: Tap water contains chlorine and chloramines that are deadly to fish. A few drops of conditioner make it safe instantly.
- Liquid Test Kit: Forget the paper strips; a liquid kit is far more accurate for monitoring your ammonia, nitrite, and nitrate levels.
Common Mistakes to Avoid
Even with the best intentions, it’s easy to slip up. Here are the three most common “pitfalls” I see beginners encounter. If you can avoid these, you are already ahead of 90% of new keepers!
1. Overfeeding
It is tempting to feed your fish every time you walk by the tank, but most fish only need to eat once a day. Excess food rot at the bottom, causing a massive ammonia spike. Only feed what they can consume in two minutes.
2. Cleaning Too Much
Wait, is there such a thing as being too clean? Yes! Never wash your filter media in tap water. The chlorine will kill the beneficial bacteria we talked about earlier. Instead, gently rinse your sponges in a bucket of old tank water during your weekly water change.
3. Adding Too Many Fish at Once
Adding ten fish to a brand-new tank will overwhelm the biological filter. Start with two or three, wait a week or two for the bacteria to catch up, and then add more. Patience is the greatest virtue in this hobby!
Frequently Asked Questions
What are the best good fish to have as pets for a 10-gallon tank?
For a 10-gallon setup, I highly recommend a single male Betta, a small school of 6 Chili Rasboras, or a group of Fancy Guppies. These species stay small and won’t feel cramped in a smaller volume of water.
How often should I change the water?
A good rule of thumb is to perform a 20-25% water change every week. This removes nitrates and replenishes essential minerals. Always remember to use a water conditioner to neutralize chlorine in the new water.
Can I keep goldfish in a small tank?
Actually, goldfish are not ideal for small beginner tanks. Even the “small” ones at the store grow very large and produce a massive amount of waste. A single Fancy Goldfish really needs at least 20-30 gallons to live a healthy life.
Do fish sleep?
Yes! While they don’t have eyelids to close, fish have periods of reduced activity where they “hover” in place or nestle into plants. This is why it is important to turn off your aquarium lights for 8-10 hours every night.
What should I do if my fish looks sick?
The first step is always to test your water. Most illnesses are caused by poor water quality. If your parameters are off, a large water change often fixes the issue. If the fish has visible spots or fuzz, you may need to look into specific medications like Ich treatments.
Conclusion: Your Aquatic Adventure Awaits
Choosing good fish to have as pets is the first step toward a rewarding and peaceful hobby. Whether you are drawn to the intelligence of the Betta, the frantic energy of the Guppy, or the social antics of the Corydoras, there is a perfect fish out there for your home. By focusing on a proper nitrogen cycle, choosing compatible tank mates, and maintaining a consistent cleaning schedule, you are setting yourself up for long-term success.
Remember, every expert aquarist started exactly where you are today. Don’t be afraid to ask questions, read more guides here on Aquifarm, and most importantly, enjoy the process! There is something truly magical about watching a tiny ecosystem thrive under your care. Happy fish keeping!
