There’s a lot of things to consider when planning your first aquarium, and one of the most challenging might just be figuring out how to stock it. What are the best fish for a 10-gallon tank and how many fish can fit inside one? As you’ll see, there’s both an art and science to building a healthy freshwater tank, so check out these tips! Show
What You Need to Know When Stocking 10 Gallon TanksWhile 10-gallon aquariums have long been the most popular size for first-time fish keepers, they also present a few challenges as well. Novice aquarists can easily find advice on how to equip and maintain Nano Tanks, but it’s trickier to pick good fish for a 10-gallon tank and learn how to gradually build a new aquatic community. Debunking the Inch-Per-Gallon MythYou may have heard of the popular quasi-scientific rule for stocking a freshwater aquarium that goes something like “add one inch of fish per gallon of water.” Just add up the length of each fish, keep the total under 10-inches and you’re good, right? It’s not totally useless, but as a rule-of-thumb, it has some problems. The inch-per-gallon guideline falls short because it’s overly simplistic. It ignores some essential but overlooked facts about aquariums that directly impacts how many fish you can safely keep inside a 10-gallon tank. Let’s take a look at what really matters when it comes to selecting the coolest freshwater fish for your 10-gallon tank. Aquariums Hold Less Water Than You’d Think10-gallon aquariums don’t actually hold 10-gallons of water, so if you’re using the inch-per-gallon calculation to stock your tank, the math will be off right from the start. This is one reason that many novices add too many fish to their new tanks and then suffer from heavy losses. How can this be?
New Aquariums Can Maintain Fewer Fish Than Cycled or Mature Tank’sThe rule also assumes that all 10-gallon tanks can hold the same number of fish without problems. But the water chemistry in a brand new aquarium is very different from one that’s been cycled, and both are quite different from mature systems:
Ignores Filtration, Maintenance and Total Number of AnimalsI’d also argue that your filtration system and maintenance routine has a much bigger impact on how many healthy fish you can keep in your small community than just the total length of fish. Even a 10-gallon with a single 1-inch fish will eventually crash if you neglect to filter and change the water: Image Source : Green Jean
What Types of Fish Can Live in a 10 Gallon Aquarium?Activity and temperament are the key features in determining the best fish for a 10-gallon tank. Their size also factors in, but it’s not definitive. Minnows are small fish, for instance, but they are also very active and live in large schools, so they aren’t a good option for a 10-gallon. What should you look for? Characteristics of the Ideal Nano Fish
Balance Your CommunityYou can often accommodate a larger community in a small tank if you add a mix of surface or mid-level swimmers and bottom feeders instead of fish that all use the same area. This reduces stress and competition, since they’ll mostly stick to different parts of your tank. Functional fish like algae eaters are a good idea, too! Density and Calculating How Many FishMy advice for stocking your tank depends on your experience level and the stage and set-up of your aquarium. Here are some guidelines to help you calculate your ideal 10-gallon tank population: Community Density Lightly Stocked Moderately Stocked Densely Stocked How Many Fish? 1 to 2 medium fish 1 to 3 medium fish 4 or more medium fish Ideal for: New or recently cycled tanks Cycled and mature tanks Experienced fish
keepers Community Density Lightly Stocked How Many Fish? 1 to 2 medium fish Ideal for: New or recently cycled tanks Community Density Moderately Stocked How Many Fish 1 to 3 medium fish Ideal for: Cycled and mature tanks Community Density Densely Stocked How Many Fish 4 or more medium fish Ideal for: Experienced fish keepers How to Build Your Community Tank: 10-Gallon Tank-Mate CombosIt’s better to err on the side of caution when stocking a new tank to prevent deadly and expensive crashes. Once your tank cycles, you can gradually add more fish, and once it’s mature you can finish stocking your tank with the sensitive species ideal for established communities! Here’s a few examples of how your 10-gallon community can evolve over time: Betta or Gourami Centered Tank
Initial Set-Up 1 Betta Fish OR Cycled Tank (~1 month) 2 to 3 Cory Cats Mature (3 to 6 months) 5 to 10 Shrimp w/ Male Betta OR Initial Set-Up 1 Betta Fish OR Cycled Tank (~1 month) 2 to 3 Cory Cats Mature (3 to 6 months) 5 to 10 Shrimp w/ Male Betta OR Planted Loach TankInitial Set-Up 1 Kuhli Loach Cycled Tank (~1 month) 1 to 2 more Loaches Mature (3 to 6 months) 1 to 2 Nerite Snails OR Initial Set-Up 1 Kuhli Loach Cycled Tank (~1 month) 1 to 2 more Loaches Mature (3 to 6 months) 1 to 2 Nerite Snails OR Hard Water CommunityInitial Set-Up 5 Least Killifish OR Cycled Tank (~1 month) 5 more
Killifish OR Mature (3 to 6 months) 5 additional Killifish OR Initial Set-Up 5 Least Killifish OR Cycled Tank ( ~1 month) 5 more Killifish OR Mature (3 to 6 months) 5 additional Killifish OR 15 Best Fish and Invertebrates for 10 Gallon AquariumsHere’s a list of the top 15 fish for stocking 10-gallon freshwater aquariums. They’re all friendly, mellow species ideal for beginners and small set-ups, except the slightly more challenging Kuhli Loach and active Zebra Danio. 1. Betta FishImage Source: flickr.com10-gallons is the ideal capacity for a Betta Tank, and you can easily keep a male or female Betta in a community with a few tank mates and some live plants. This is our favorite pick to start out with. Betta Fish(Betta splendens) 75 to 86°F 2. Dwarf GouramiThe magnificent Dwarf Gourami comes in a rainbow of colors and makes a stunning centerpiece to a 10-gallon community. They’re easy-going, and you can keep up to 3 of these bigger fish in your tank. Dwarf Gourami(Trichogaster lalius) 77 to 79°F 3. Neon TetraImage Source: flickr.comThe beautiful red-and-blue Neon Tetras are an easy and popular option for small tanks. They’re sensitive and do better in cycled and mature communities, and are best kept in groups of 6 to 10 in a 10-gallon. Neon Tetra(Paracheirodon innesi) 70 to 81°F 4. Zebra DanioImage Source: flickr.comZebra Danios are hardy and active fish ideal for new aquariums, but you’ll likely need to upgrade their habitat as they mature.10-gallons are a bit cramped for adults, and these fish prefer larger groups of 15+. Zebra Danio(Danio rerio) 64 to 77°F 5. Fancy GuppyThe sensitive Fancy Guppy prefers cycled and mature tanks, but these colorful small live-bearing fish are easy for beginners to care for (and breed)! Add a few for a spark of color or keep 8 to 15 adult fish in a group. Fancy Guppy(Poecilia reticulata) 75 to 82°F 6. Platy FishImage Source : flickr.comAnother easy-breeding and colorful live-bearer is the Platy Fish, and you can keep up to 5 adults in a 10-gallon tank or a group of 3 in a mixed community. They’re a good option if you have hard water, too. Platy Fish(multiple Xiphophorus sp.) 72 to 70°F 7. Common MollyImage Source : flickr.comThe live-bearing Common Molly requires hard water, but otherwise is undemanding and easy to care for. You can keep these fish solo or in groups up to 4 in a 10-gallon, but avoid the bigger Sailfin morph, which needs more space. Common Molly(Poecilia sphenops) 72 to 82°F 8. Least KillifishImage Source : wikimedia.orgLeast Killifish are a unique micro-fish ideal for communities with freshwater shrimp and snails. They often can’t compete with bigger fish, but you can keep up to 20 of them in a 10-gallon tank! Least Killifish(Heterandria formosa) 68 to 79°F 9. Dwarf PencilfishImage Source : wikimedia.orgDwarf or Beckford’s Pencilfish are one of the few species of pencilfish ideal for novice aquarists and small set-ups. They have an entertaining way of darting around your tank and are available in vivid red and golden morphs Beckford’s Pencilfish(Nannostomus beckfordi) 76 to 82°F 10. Otocinclus CatfishImage Source: wikipedia.orgOne of the most functional fish in the trade is the algae-eating Otocinclus catfish or Oto! They’re a great 10-gallon option, either individually or as a group, and they’ll keep troublesome algae at bay too. Otocinclus (multiple Otocinclus sp.) 72 to 82°F 11. Dwarf Corydoras CatfishImage Source : wikimedia.orgScavenging Corydoras or Cory Cats are fun bottom dwellers, but they’re shy as singles and prefer to live in groups of 4 to 8. The Dwarf Cory is a great option for a 10-gallon, but the slightly smaller Pygmy Cory has similar requirements. Dwarf Cory Cat(Corydoras hastatus) 72 to
79°F 12. Kuhli LoachOnce you’re comfortable maintaining an aquarium, you can try the slightly more challenging Kuhli Loach. They tend to be shy and don’t come out by day, but if you have a moonlight, you can watch them scavenge at night!
Kuhli Loach(Pangoi kuhlii) 75 to 84°F 13. Nerite SnailsOnce your tank has cycled, consider adding a Zebra, Tiger, or Olive Nerite Snail to your clean-up crew. They’re an ideal option for hard water communities and they’ll likely reproduce in your tank, too. Nerite Snails(multiple Neritina sp.) 72 to 78°F 14. Red Cherry ShrimpRed Cherry Shrimp (RCS) are brightly-colored freshwater invertebrates perfect for small hard water set-ups. They’re sensitive to nitrites and do best in mature 10-gallons, but they’re an easy and fast-breeding option for beginners. Red Cherry Shrimp(Neocaridina heteropoda) 65 to 85°F 15. Ghost ShrimpAnother freshwater invertebrate that looks cool in a small tank is the Ghost or Glass Shrimp. They’re easy to care for, and you can see straight through their carapace and even watch them digest their food! Ghost Shrimp(multiple Paleomonetes sp.) 65 to 82°F ConclusionThere’s more to stocking a 10-gallon than just the size of your fish, and I hope this article has helped you get a sense of how to stock your tank as it matures. What is your favorite fish for 10-gallon tanks? Comment below, or come join the big social media pond online! You might be interested in our article about best fish for a 20-gallon tank. What can I stock my 10 gallon tank with?Top 10 Fish for a 10-Gallon Aquarium. Brown Pencilfish. Let's start off with a top-dwelling fish, which can be hard to find for a 10-gallon tank. ... . Apistogramma. ... . Lyretail Killifish. ... . Kuhli Loach. ... . Cherry Barb. ... . White Cloud Mountain Minnow. ... . Neolamprologus multifasciatus. ... . Green Neon Rasbora.. How many fish can you stock in a 10 gallon tank?Going by the numbers, however, you can put up to 8 to 10 fish in a 10-gallon aquarium tank. However, we would not recommend adding 10 fish in a tank unless the fish are tiny and do not generate too much waste. On the other hand, if you have chosen fish types that grow over time, you should limit the number to 8 or 6.
What are the best bottom feeders for a 10 gallon tank?Best Bottom Feeder Fish List For Freshwater Aquariums. Bristlenose Pleco (Ancistrus) Origins: South America. ... . Corydoras Catfish (Corydoras melanotaenia) ... . Botia Loaches (Botia striata) ... . Otocinclus Catfish (Otocinclus arnoldi) ... . Synodontis Catfish (Synodontis nigriventris) ... . Kuhli Loaches (Pangio kuhlii) ... . Ornamental Shrimp. ... . Snails.. |