Can they live together?

Chinese Algae Eater and Freshwater Angelfish compatibility

Compare their preferred water conditions and basic behavior.

Chinese Algae Eater

Chinese Algae Eater

Freshwater Angelfish

Freshwater Angelfish

Use caution

Several high-waste species need extra filtration and regular water changes.

  • This pairing may work, but monitor behavior and provide suitable conditions.

Checked for 1 Chinese Algae Eater and 1 Freshwater Angelfish in a 200 L aquarium.

Shared environment

Recommended temperature
26 ~ 28°C

Recommended pH
6.3 ~ 7.4

Suggested group sizes

Chinese Algae Eater: at least 1

Freshwater Angelfish: at least 1

Together they need at least 200 L and about 100 cm of length.

Check that your aquarium is large enough for both species.

Side by side

ItemChinese Algae EaterFreshwater Angelfish
Average adult sizeabout 25 cm (large)about 15 cm (large)
Recommended temperature22~28°C26~29°C
Recommended pH6.0~8.06.3~7.4
Water hardnessMedium hardnessMedium hardness
Minimum aquarium200 L, about 100 cm long200 L, about 100 cm long
Group sizesingle is finesingle is fine
TemperamentSemi-aggressiveTerritorial
Social behaviorSocial needs depend on the species and setupBest kept as a pair
Swimming zonemiddlemiddle
Activity levelModerateModerate
Waste levelHighHigh
With shrimpadults not recommended, babies not recommendedadults not recommended, babies not recommended
Beginner level2/53/5

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Frequently asked questions

Can Chinese Algae Eater and Freshwater Angelfish live together?

Planner result: Use caution. Several high-waste species need extra filtration and regular water changes. This pairing may work, but monitor behavior and provide suitable conditions.

What water conditions suit both Chinese Algae Eater and Freshwater Angelfish?

Keep the water at 26~28°C and pH 6.3~7.4, where both planner ranges overlap. Chinese Algae Eater prefers medium hardness and Freshwater Angelfish prefers medium hardness.

How big should an aquarium for Chinese Algae Eater and Freshwater Angelfish be?

At least 200 L and about 100 cm long, the larger of the two minimums (Chinese Algae Eater: 200 L, Freshwater Angelfish: 200 L). Group sizes add to the bioload, so bigger is safer.

How many Chinese Algae Eater and Freshwater Angelfish should I keep?

Chinese Algae Eater: can be kept singly (social needs depend on the species and setup). Freshwater Angelfish: can be kept singly (best kept as a pair).

Do Chinese Algae Eater and Freshwater Angelfish have similar temperaments?

Chinese Algae Eater is semi-aggressive and swims in the middle; Freshwater Angelfish is territorial and swims in the middle. Activity: moderate vs moderate.

Sources & review

Each species' values are cross-checked against the references below and normalized into the planner's own ranges; the verdict comes from the planner's published rules. No text or images are copied.

Chinese Algae Eater

Review confidence B on an A–C scale (A is highest); last reviewed 2026-10-07.

Freshwater Angelfish

Review confidence A on an A–C scale (A is highest); last reviewed 2026-10-07.

How compatibility is checked

Try it in my aquarium

This is a guide. Individual behavior and aquarium conditions can change the outcome.