The usual water temperature for them is between 70вЏ-75вЏ, pH 5.8-7.5 and dGH hardness 4-18. Tetra fish tank requirements are not that strict. They also come in many different sizes and shapes which makes the fish more interesting to watch as it swims all-around your 1 gallon tank. Tetras have a lot of color varieties and very active swimmers that can live up to 2-3 years. Also, remember that bigger tanks are less affected by fluctuations in room temperature. Bettas are very sensitive to cold temperatures, which is why you need to be careful with and use an aquarium heater. You can use a tank heater to achieve this temperature.

So the more space they have, the happier theyвЂ™ll be.ДЄquarium temperature should be between 78вЏ and 83вЏ. The reason why you will be forced to buy a bigger Betta fish tank for your Bettas is that they love open space and swim around chasing each other (in case they live with other Bettas) or playing with toys. Bettas come in many colors including red, orange, yellow, blue, white/cream, green, black, and even purple!Д«ettas need an aquarium thatвЂ™s at least 1 gallon in size вЂ“ bigger is better! Bettas like to live alone and dominate the tank, thatвЂ™s why they are your best stocking idea for your 1 gallon tank. TheyвЂ™re easy to keep and inexpensive to purchase. Bettas are beautiful fish that have a friendly nature. 2 вЂ“ Bettas FishД«ettas are known to be one of the most popular, colorful, and easily kept fish. As livebearers, Guppies are very sensitive to changes in the quality of their environment, so itвЂ™s important to maintain stable parameters at all times. The ideal temperature for them is between 72вЏ-77вЏ, with a pH range of 6.0-7.5 and water hardness 5-19 dGH. There is a small chance of them harming one another if kept in a limited space for a long period of time. You can combine 1 male guppy with 2 female guppies inside a 1 gallon fish tank. Guppies are the ideal choice for your 1 gallon tank because they are active and will swim around the tank from time to time. As they grow bigger is better to keep them in at least a 5 gallon fish tank. These small colored fishes are small in size but this does not mean they will stay inside the tank where thereвЂ™s limited space once fully grown up.

They can live up to 2 to 3 years if cared for well.

Listed as one of the best fish for 1 gallon tank, guppies are great starter fish.

1 gallon fish bowl