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Fish guides / Angelfish
Centerpiece fish

Angelfish: Tank Size, Tank Mates and Setup

A tall, striking cichlid that needs a tank of 29 gallons or larger, and taller is better.

Minimum tank
29 gallons
Temperature
76–82°F
Group size
One or more
Adult size
6 inMiddle of the tank
  • Adults eat fish small enough to fit in their mouths, including neon tetras.
  • Its body is taller than it is long, so tank height matters as much as volume.

Pterophyllum scalare. Figures are commonly published care ranges; see how it works.

How many angelfish per tank size

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

TankAngelfish, kept alone
5 gallonToo small (needs 29+ gal)
10 gallonToo small (needs 29+ gal)
20 gallonToo small (needs 29+ gal)
29 gallonUp to 2Plan this tank
40 gallonUp to 4Plan this tank
55 gallonUp to 5Plan this tank
75 gallonUp to 7Plan this tank

What you need for a angelfish in a 29-gallon tank

A starting setup: 1 angelfish in the smallest standard tank that suits them.

Your blueprint

29-gallon tank

1 angelfish
Stocking level31% · Lightly stocked
  • These fit a 29-gallon tank and get along. Aim for about 79°F.

Equipment, sized for this tank

Tank: 29 gallons
Standard size: 30 × 12 × 18 inches, about 330 lbs when full.
See tanks on Amazon
Heater: 150 watts
Holds 29 gallons at 79°F in a 68°F room.
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Hang-on-back filter: 180+ gallons per hour
Turns the tank over about 6 times an hour, for a heavy waste load.
See filters on Amazon
Gravel or sand: 35 lbs
Enough for a 1.5-inch layer in this tank.
See substrate on Amazon
LED light and lid: 30 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 2.9 mL per full fill; follow your bottle's label.
See on Amazon
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.
See on Amazon
Gravel vacuum
For weekly water changes of about 7 gallons (25%).
See on Amazon
Small cichlid pellets
For your angelfish.
See on Amazon

Paid links. As an Amazon Associate, TankStarter earns from qualifying purchases. Sizes are estimates from published care guidelines, not hands-on testing.

Angelfish tank mates

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

Use caution with: neon tetra, ember tetra, black skirt tetra, endler's livebearer, white cloud minnow, chili rasbora, tiger barb, pygmy corydoras, fancy goldfish, cherry shrimp, amano shrimp. Add them in the builder to see why.

Plan a tank around angelfish

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

Open the tank builder

Angelfish questions

What size tank does a angelfish need?

At least 29 gallons. A larger tank is more stable and gives you more choice of tank mates.

How many angelfish can I keep in a 29-gallon tank?

Up to about 2 if they are the only species in the tank. Fewer if you add other fish.

Do angelfish need a heater?

Usually yes. Angelfish does best at 76–82°F, which is warmer than most rooms. A 29-gallon tank needs about 150 watts in a 68°F room.

What fish can live with angelfish?

Good matches include bettas, cardinal tetras, rummy-nose tetras, guppies, platies, mollies. They share a temperature range and temperament with angelfish.