Humankind’s best friend doesn’t come cheap. Owning a dog or cat costs about $500 annually, and owners can expect to pay up to three times that during the first year in food, veterinarian visits, and additional costs. What most people might not realize, however, is that there are plenty of pets that don’t require a lot of time or money. From insects to birds, we compiled a list of some of the cheapest low-maintenance pets to help you choose.
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Canary

Price: $100 Canaries have been one of the most popular types of pet bird for more than 500 years, thanks both to their ease of care and, among male canaries, their trademark singing. Canaries live for about 8 to 15 years and they’re relatively inexpensive compared to other pet birds like parrots. Pet stores will typically sell canaries for about $100 to $150, though breeders will often sell them for cheaper. Excluding the costs of a cage, toys (canaries can get bored), and unforeseen veterinary visits, you can expect to pay about $100 per year for food and miscellaneous supplies.
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Degu

Price: $80 Degus, which come from Chile and are a type of rodent similar to a guinea pig, make surprisingly easy-to-care-for pets when socialized from a young age. There’s one catch: They do best in pairs because they’re extremely social critters. After buying a multi-level cage ($50 to $150) and some other supplies ($100), you can expect to pay between $60 and $120 per year on food for each degu (guinea pig food works fine), depending on its appetite.
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Butterflies

Price: $20 Butterflies are one of the few pets you can order from Amazon right now (in caterpillar form at least). Raising butterflies is fairly easy, though most live butterfly kits only guarantee that several of the five or so caterpillars they send you will reach maturity. The best part about this pet is that most butterfly species don’t have a specialized diet: You can simply feed them a mixture of sugar and water. Expect to pay less than $30 to raise and keep your butterflies.
Sea Monkeys

Price: $12 Marketed as the world’s only instant pets, Sea-Monkeys is the brand name for a type of brine shrimp that are sold in novelty kits, usually to children. They make remarkably easy pets: Just pour a packet containing salt, conditioner, and brine shrimp eggs into a tank of water, and wait a few days for the little crustaceans to hatch. After, all you’ll need to do is change the water every once and a while and feed them the “growth food” that comes with most kits.
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Venus’ Flytrap

Price: $20 A plant qualifies as a pet if it captures and eats animals, right? Venus’ flytraps are unique in that they have a special mechanism that’s able to close rapidly on insects unlucky enough to land on their lobes. The plants aren’t too difficult to raise, requiring consistent sunlight and a special type of soil (about $5 for a gallon), and are inexpensive when purchased young.
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Praying Mantis

Price: $12 The praying mantis is great for people who don’t want a fuzzy, emotional connection with their pet. Rest assured, this insect, whose females kill and eat males after sex, won’t provide that. Still, praying mantises are cool to look at and it’s fun to watch them feed. Speaking of which, food is the only catch with this strange pet: Typically, praying mantises eat live insects, which can cost about $100 per year.
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Scorpion

Price: $20 With their two pincers and a venomous stinger, it doesn’t take an ethologist to see that scorpions are a look-but-don’t-touch kind of pet. They’re easy to care for and only need a terrarium and a heating pad, totaling about $50. The one catch? Like praying mantises, scorpions eat live insects, so plan on spending about $75 per year on crickets.
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Rat

Price: $10 Choosing a rat as a pet might seem like a gamble. But many rat owners say that the furry little rodents are actually cuddly if they’re handled often from a young age. Rats are also low-maintenance. All you’ll need to buy is a 20-gallon aquarium or a similarly sized wire cage ($30+), some bedding and toys, and food, which will cost you about $40 per year.
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Guinea Pig

Price: $30 Guinea pigs are arguably the cutest pets within the rodent family, and they make great little companions for pre-teens or younger children who can handle them gently. Despite their name, guinea pigs belong to the rodent family — though they’re known to squeak and squeal like real pigs when expressing emotions. Guinea pigs aren’t the cheapest pet to own on our list — food, bedding, and hay can cost up to $30 per month — but their friendly and easy nature makes them a classic “beginner” pet. If cared for properly, guinea pigs can live to be 8 years old.
Ants

Price: $15 Ants aren’t smart, cuddly, or particularly cute. But they’re remarkably cheap and easy to maintain, and watching them tunnel in their ant farms can be fascinating – especially if you buy a modern ant farm like those offered by the ant supplier Antworks, which start at about $20 and are made from a clear gel that doubles as food.
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Betta Fish

Price: $5 Betta fish might be gorgeous, but they’re decidedly not friendly. They’re also known as Siamese fighting fish because bettas (especially the males) are extremely aggressive and are prone to attacking any other kind of small fish that’s kept in the same tank. Still, these vibrantly colored fish make for beautiful, low-maintenance pets when kept in isolation. A betta fish will do fine in a 5-gallon tank ($20), and you can expect to pay as little as $20 for food each year.
Goldfish

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Leopard Geckos

Hermit Crabs
