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How many celestial pearl danios in a 5-gallon tankĬelestial pearl danios (see our care guide by clicking here) are a favorite choice for 5-gallon tanks because they are hardy fish, with minimal tank requirements. Pin Celestial Pearl Danio ( Danio margaritatus) Watch closely for new inhabitants, as they are prolific breeders and can overpopulate a nano tank if left to their own devices. They come in brightly toned colors and will make the little underwater ecosystem in your home look animated and exciting. How many Endler’s livebearers in a 5-gallon tankĮndler’s livebearers have the advantage of being much smaller than their Guppy relatives, allowing them to live comfortably in groups of 6 in a 5-gallon tank. Pin Endler’s Livebearer ( Poecilia wingei) You should only keep one betta in a 5-gallon tank, as pairing two male bettas will inevitably lead to constant fighting, while a male-female pair of bettas will lead to stressful harassment for the female with not enough room to escape her partner’s insistent pursuit for mating. You’ll need to make sure there are plenty of live plants (less likely to hurt their long-flowing fins than fake plants) and lots of decorations for your betta fish to explore. They’re territorial and enjoy having a space to claim as their own, without getting lonely or bored. Pin Siamese fighting fish ( Betta splendens)īettas are the perfect all-around fish for a 5-gallon nano tank. There are plenty of options to choose from, but this article narrows it down to 9 species that will not only survive in a 5-gallon tank but will thrive in it! What Can Live In A 5 Gallon Tank? 9 Best Aquatic Animals 1) Betta Fish So, the answer to the question of how many fish you can keep in a 5-gallon tank will depend significantly on the type of fish you choose to stock it with. a fish’s social needs: fish species that will be more stressed when alone than in a group, even if they don’t engage in schooling/shoaling behavior.shoaling behavior: fish that need to swim in larger numbers just to feel safe, even if they’re in a single-species aquarium.a fish’s temperament: territorial fish won’t share their space even in a much larger tank, which makes them ideal for a nano aquarium setup.You may have read about the “one inch of fish per gallon of water” guideline that most online resources recommend when stocking a fish tank.įor larger-bodied fish, this rule of thumb can easily be dismissed and can even be dangerous to follow.įor smaller sized fish, this standard advice is somewhat helpful, but it doesn’t take into account a lot of factors, such as: How Many Fish Can You Safely Fit In A 5 Gallon Tank? Gear You Need For A 5 Gallon Tank Setup.Fish You Shouldn’t Keep In A 5 Gallon Tank.Popular Stocking Combos For A 5-Gallon Tank.What Can Live In A 5 Gallon Tank? 9 Best Aquatic Animals.How Many Fish Can You Safely Fit In A 5 Gallon Tank?.