White Cloud Mountain Minnow: Tank Size, Tank Mates and How Many to Keep

White Cloud minnows are small, hardy fish that prefer cool water. They are a great choice for a tank with no heater.

Adult size
1.6 in4 cm
Smallest tank
10 gallons38 liters
How many
6 or more
Temperature
61–73 °F16–23 °C
pH
6.5–8
Temperament
Peaceful
Swims
Near the top
Heater needed
No, in a normal room

What size tank do White Cloud Mountain minnows need?

At least 10 gallons (38 liters) for a group of 6. The smallest standard tank that works is the 10 gallon. A bigger tank is always easier to keep stable. We give the size for an adult fish in a proper group, because the small fish in the shop will grow. Scientific name: Tanichthys albonubes.

How many White Cloud Mountain minnows in each tank size?

This is how many each standard tank carries comfortably if White Cloud Mountain minnows are the only fish in it. Share the tank with other species and the number goes down.

TankHow many White Cloud Mountain minnows
5 gallonToo small
10 gallonup to 7
20 gallon longup to 14
29 gallonup to 20
40 gallon breederup to 28
55 gallonup to 39
75 gallonup to 53
125 gallon60 or more

Check White Cloud Mountain minnows against your own tank and other fish

Good to know

  • Does best unheated.
  • Keep at least 6. Alone or in twos and threes, White Cloud Mountain minnows hide, stop eating well, or pick on each other.
  • It prefers cool water. Do not mix it with tropical fish that need a heater.

Tank mates for White Cloud Mountain minnows

These animals like the same water, are a safe size, and have a temper that fits. It is a match on paper: always watch new tankmates for the first week.

Poor matches

  • Betta: No shared temperature: White Cloud Mountain minnow wants it cooler than betta can take.
  • Guppy: Their temperature ranges barely overlap: White Cloud Mountain minnow likes 61–73 °F (16–23 °C), Guppy likes 72–82 °F (22–28 °C).
  • Fancy goldfish: Goldfish do best with other fancy goldfish.
  • Oscar: Oscar is aggressive and will bully or kill peaceful fish such as White Cloud Mountain minnow.

Questions and answers

What size tank do White Cloud Mountain minnows need?

At least 10 gallons (38 liters) for a group of 6. The smallest standard tank that works is the 10 gallon. A bigger tank is always easier to keep stable.

How many White Cloud Mountain minnows should be kept together?

At least 6. White Cloud Mountain minnows are social animals and only behave naturally in a group. More is better if the tank has room.

Can White Cloud Mountain minnows live in a 10 gallon tank?

Yes. A 10 gallon tank carries up to about 7 as the only fish in the tank.

What temperature do White Cloud Mountain minnows need?

61–73 °F (16–23 °C), with a pH of 6.5–8. In a normal room that usually means no heater.

Can White Cloud Mountain minnows live with a betta?

It is not a good match. No shared temperature: White Cloud Mountain minnow wants it cooler than betta can take.

More fish

Adult size, tank size and water ranges follow the mainstream care consensus (Seriously Fish species profiles and FishBase maximum lengths). Where sources differ we use the more cautious figure. Stocking numbers come from our stocking calculator.