How many fish can a 1-gallon tank hold?
One of the most important factors that comes into keeping fish in tanks or ponds is how many fish you can get away with keeping in one system. The tried and true rule of how many fish per gallon is: 1″ of fish per gallon of water.
What fish can live in a 1-gallon tank with no filter?
The common fish species that are suitable for life in an aquarium without a filter are: Bettas, Guppies, White Clouds, and a few others, sometimes joined by ghost shrimp or snails.
What fish requires the smallest tank?
- Betta fish are a typical choice for a small tank, but even they need a fair amount of space.
- Betta Fish.
- The fancy guppy is a good choice for a small tank.
- Neon Tetra.
- Zebra Danio.
- A single dwarf gourami is a good fish for a small tank.