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Fish guides / Cherry barb
Schooling fish

Cherry Barb: Tank Size, Tank Mates and Setup

The peaceful barb. Males turn deep red. Keep six or more in 20 gallons or larger.

Minimum tank
20 gallons
Temperature
73–81°F
Group size
6 or more
Adult size
2 inMiddle of the tank
  • Unlike tiger barbs, cherry barbs rarely nip fins.

Puntius titteya. Figures are commonly published care ranges; see how it works.

How many cherry barbs per tank size

The most you could keep if cherry barbs were the only species. Open a size in the builder to add tank mates.

TankCherry barb, kept alone
5 gallonToo small (needs 20+ gal)
10 gallonToo small (needs 20+ gal)
20 gallonUp to 12Plan this tank
29 gallonUp to 20Plan this tank
40 gallonUp to 27Plan this tank
55 gallonUp to 38Plan this tank
75 gallonUp to 51Plan this tank

What you need for cherry barbs in a 20-gallon tank

A starting setup: 6 cherry barbs in the smallest standard tank that suits them.

Your blueprint

20-gallon tank

6 cherry barbs
Stocking level43% · Good
  • These fit a 20-gallon tank and get along. Aim for about 77°F.

Equipment, sized for this tank

Tank: 20 gallons
Standard size: 24 × 12 × 16 inches, about 225 lbs when full.
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Heater: 75 watts
Holds 20 gallons at 77°F in a 68°F room.
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Hang-on-back filter: 100+ gallons per hour
Turns the tank over about 5 times an hour.
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Gravel or sand: 25 lbs
Enough for a 1.5-inch layer in this tank.
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LED light and lid: 24 inches long
A lid cuts evaporation and stops fish and snails getting out.
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Starter supplies

Water conditioner
Removes chlorine from tap water. Roughly 2 mL per full fill; follow your bottle's label.
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Liquid water test kit
For cycling the tank before fish go in, and for checking water after.
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Thermometer
A heater's dial is only a rough guide.
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Gravel vacuum
For weekly water changes of about 5 gallons (25%).
See on Amazon
Tropical flake food
For your cherry barbs.
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Paid links. As an Amazon Associate, TankStarter earns from qualifying purchases. Sizes are estimates from published care guidelines, not hands-on testing.

Cherry barb tank mates

These share a temperature range and temperament with cherry barbs, with no warnings from our checks.

Use caution with: white cloud minnow, fancy goldfish. Add them in the builder to see why.

Plan a tank around cherry barbs

Add tank mates, check the stocking level and get the equipment sized for your tank.

Open the tank builder

Cherry barb questions

What size tank does a cherry barb need?

At least 20 gallons for a group of 6. A larger tank is more stable and gives you more choice of tank mates.

How many cherry barbs can I keep in a 20-gallon tank?

Up to about 12 if they are the only species in the tank. Fewer if you add other fish.

Do cherry barbs need a heater?

Usually yes. Cherry barb does best at 73–81°F, which is warmer than most rooms. A 20-gallon tank needs about 75 watts in a 68°F room.

What fish can live with cherry barbs?

Good matches include bettas, neon tetras, cardinal tetras, ember tetras, rummy-nose tetras, black skirt tetras. They share a temperature range and temperament with cherry barbs.