Nano fishes are fish that grow to be less than two inches long and may be kept in aquariums as small as 10 gallons. The number of fish that may be safely kept in an aquarium is related to the concentration of filtration, maintenance, and feeding.
There are so many types of small Nano fish to keep in your freshwater aquarium that it can be hard to decide which is right for you.
So, in this article we will discuss about Top 10 Nano Fish for Freshwater Aquariums
Salt and pepper catfish
The Salt and Pepper Corydoras is a small freshwater fish that can reach 1.4 inches in length when fully grown. Aquarists may expect their fish to live as up to 5 years with proper care, nutrition, and tank setup.
It originates in South American inland waters and may be found in the Upper Orinoco River basin in Venezuela and Colombia.
The salt and pepper catfish is a friendly fish that may be housed in a community aquarium with other smaller fish species including ember tetras, clown panchax, Endler guppies, and small rasbora species.
The least amount of rasbora or exclamation point Rasbora is a ray-finned fish species in the family Boraras. The size of this species ranges from 12 to 16 mm.
This fish was originally found only in swampy areas of the Sai Bury River in southern Thailand as well as Cambodia, Malaysia, and Indonesia.
Least rasbora is a calm fish that should be kept in a school of at least seven, but the more the better. It gets along well with other small, friendly fish, such as other Boraras and small Corydoras.
Spotted Blue-eye Rainbowfish
The Spotted Blue Eye Rainbowfish gets along well with other small fish and may even be kept with adult dwarf shrimp. The general colour is pure to light silver-white, with tan or yellow tones. Yellow with black lines on the fins.
Spotted Blue Eye Rainbowfish may be found in several rivers that flow into the Gulf of Carpentaria and the Timor Sea, extending eastwards from Darwin to Arnhem Land, Carpentaria, Kakadu National Park, and all the way to the Cape York Peninsula.
Chili Rasbora is a lovely and small schooling fish that’d seem excellent in a nano tank or as part of a larger community tank.
Dieter Vogt described the Chili Rasbora in 1973, and it was called Rasbora brigittae after Dieter’s wife, Brigitte. The Chili Rasbora is not a real Rasbora and was put in the Boraras genus in 1993.
Chili Rasbora has a dark stripe along the side of their red bodies. This dark stripe contrasted with a deep red stripe above it.
Borneo Sucker Loach
Borneo sucker is a little interesting freshwater fish that has grown in popularity in the hobby of fishkeeping. The fish is well-known for its lifespan, brilliant color, amazing patterns and markings, and unique shape.
At maturity, these species are typically 3 – 4 cm long, although some can grow up to 7 cm. On the top and flanks, they have many cream/yellow spots and dots, as well as irregular patterns.
The Panda Guppy is one of several unique variations of the Poecilia reticulata guppy that have resulted from years of careful selective breeding.
A minimum of 10 gallons of aquarium space is required for the Panda Guppy. It is a very peaceful fish that should be kept in a tank with other fish of a similar temperament.
The Panda Guppy is a hardy fish that can tolerate small variation in water parameters; however, water temperature, pH, and nutrition levels must be checked. The Panda Guppy is an omnivore and requires both algae-based foods as well as meaty foods.
The ember tetra is a freshwater fish in the order Characiformes that belongs to the characin family. It is native to Brazil’s Araguaia River basin and was named after the mother of fish explorer Heiko Bleher.
The Ember Tetra is a cute and interesting small freshwater fish that we suggest to aquarists of all levels of experience. The typical length of an Ember Tetra is little around 1 inch.
Celestial Pearl Danio
The Celestial Pearl Danio is a freshwater fish found in South East Asia’s small, vegetated ponds. These are small fish, ranging not more than 1 inch from head to tail.
Celestial pearl danio is a small, plump danionin with a characteristic blunt snout that is just 2–2.5 cm in standard length. The body is almost three times as long as it is tall. It resembles Danio erythromicron more than any other known species in general shape.
If you’re looking for a fun fish that won’t take up too much space, I definitely suggest Clown Killifish. Clown Killies are also known as rocket killies and banded panchax.
Clown Killifish have been popular in the aquarium hobby in the United States since the 1960s, and while their name suggests that they are branded for their predatory behaviour, their true origin is Dutch.
Clown Killifish are so little that they may fit in two or three pairs in a two-gallon tank or up to eight pairs in a ten-gallon tank.
Green Neon Tetra
The green neon tetra is a freshwater fish in the Characidae family of the Characiformes order. It is native to South America’s upper Orinoco and Negro Rivers.
Green Neon Tetra is a colourful freshwater fish. Though unusual, these fish are sometimes described as Blue Neons or False Neons.
They are classified as Paracheirodon simulans and are members of the Characidae family.
Green Neon Tetras are easily commercially bred, which means they may be bought at a low price. They should only cost $2-$3 each, but you can typically do them for less than if you buy in bulk.