Best Tank Mates for Angelfish: Compatible Fish and Species to Avoid
The best tank mates for angelfish are peaceful, similar-sized fish that are too big to swallow and don't nip fins: corydoras, bristlenose plecos, larger tetras, rainbowfish, adult livebearers and a few gentle dwarf cichlids. Skip goldfish, bettas, tiger barbs, shrimp, tiny tetras and big aggressive cichlids. Below you'll find the reasoning behind each pick, a temperature compromise table, and three ready-made stocking plans for common US tank sizes.
Why Angelfish Need Careful Tank Mates
Freshwater angelfish (Pterophyllum scalare) are cichlids. They are usually calm outside of breeding, but they are semi-aggressive and opportunistic predators: anything that fits in the mouth is on the menu.
The trap is size. A store juvenile is about the size of a quarter, but an adult angel reaches roughly 6 inches (15 cm) long and 8–10 inches (20–25 cm) tall with fins. Stock for the adult fish, not the one in the bag.
The three-filter test
Run every candidate through these checks before buying:
- Mouth size. Anything under about 1.5 inches (4 cm) as an adult is at risk from a grown angel. Aim for fish around 2 inches (5 cm) or larger, ideally deep-bodied.
- Fin nipping. Angels have long, trailing fins and are slow swimmers. Nippy species will shred them.
- Water match. The mate should thrive in warm, soft-to-neutral water. Similar size and temperament matters too: not so big or boisterous that it bullies the angels.
Water and Tank Requirements
| Parameter | Angelfish target | Notes |
|---|---|---|
| Temperature | 78–84°F (26–29°C) | 76–82°F (24–28°C) is a workable overlap for many companions |
| pH | 6.5–7.5 | Captive-bred angels adapt; stability beats a precise number |
| KH | ~3–8 dKH | Soft to moderate |
| GH | ~4–12 dGH | Pick mid-range if mixing livebearers with soft-water tetras |
| Ammonia / nitrite | 0 ppm | Non-negotiable |
| Nitrate | Under 20–40 ppm | Regular water changes |
You'll see pH ranges quoted anywhere from 6.0 to 8.0. Captive-bred angels handle a wide band, so avoid chasing numbers with chemicals and focus on keeping conditions steady.
Wild-type and altum angels are a separate case: they need softer, warmer water and are more delicate than the common captive-bred strains.
Tank size and layout
- Tall tanks suit angels' vertical body shape.
- 29–30 gallons (110–114 L) tall is the bare minimum for one pair with a small cleanup crew.
- 55 gallons (208 L) or more for a real community with about 4 angels.
- 75 gallons (284 L) for around 6 angels.
- Keep flow gentle; long fins make angels weak swimmers.
Some keepers say "55 gallons or nothing." A 29 tall works for a pair, but any mixed community needs the larger tank.
Layer the tank. Angels hold the mid-to-upper water, tetras and rainbows cruise the middle, and corys, loaches and plecos work the bottom. Fish using different zones argue less.
The Best Tank Mates for Angelfish
Top-tier companions
These show up on nearly every compatibility list:
- Corydoras – Keep 5–6 or more. They stay on the bottom and ignore angels. Browse corydoras catfish for common and bronze types that suit warm tanks.
- Bristlenose pleco – One per tank. Grazes algae and stays compact.
- Boesemani and praecox rainbowfish – Active, colorful mid-water fish that are too large to eat.
- Mollies, platies and swordtails – Adults only. Their fry will be eaten, which acts as free population control.
Tetras that work
Choose larger or deep-bodied types and keep schools of 8–10 or more to spread the angels' attention:
- Black skirt tetra
- Rosy tetra
- Bleeding heart tetra
- Black phantom tetra
- Emperor tetra
- Lemon tetra
- Rummy nose tetra
A caution on black skirts: they can nip in small groups, so a large school is important. You can compare body shapes and adult sizes in the tetra selection.
Dwarf cichlids
- Keyhole cichlid – Very peaceful, one of the safest cichlid pairings.
- German blue ram – Needs pristine, warm water; not for a new tank.
- Kribensis – Give them caves; they get pushy when spawning.
Other solid options
- Zebra and giant danios – Fast enough to escape; keep in groups.
- Cherry barbs – A peaceful barb, unlike their nippy cousins.
- Harlequin rasbora – Borderline size; best with angels raised alongside them.
- Kuhli and zebra loaches – Bottom dwellers that keep out of the way.
- Otocinclus – Only in a mature tank with steady algae growth.
- Pearl, honey and blue gouramis – See the gourami section below.
- Nerite and mystery snails – The safest snails. Small pest snails often get picked at.
Temperature compromise table
| Species | Typical comfortable range | Fit with angels (78–84°F) |
|---|---|---|
| Angelfish | 78–84°F (26–29°C) | — |
| Corydoras | Warm tropical | Good; stay near the lower-middle of the angel range |
| Rummy nose tetra | Warm tropical | Good |
| Rainbowfish | Tropical | Good in the 76–82°F overlap |
| Mollies / platies / swordtails | Tropical, harder water | OK; use mid-range pH/GH |
| German blue ram | Warm, pristine | Good at the warm end |
| Discus | 82–86°F (28–30°C) | Only at the top of the angel range |
| Guppies | Slightly cooler tropical | Poor overall (see below) |
| Goldfish | Coldwater | No |
Species to Avoid
- Goldfish – Coldwater fish and heavy waste producers. A total mismatch.
- Bettas – Both species have long fins, and each may target the other.
- Tiger barbs, green tiger barbs and serpae-type tetras – Classic fin nippers.
- Shrimp – Food, especially cherry shrimp. Adult larger shrimp may survive in heavy cover, but expect losses.
- Neons, embers and other tiny fish – Fine while angels are small, eaten once angels mature.
- Large aggressive cichlids – Oscars, Jack Dempseys and most African cichlids will bully or kill angels, and Africans need hard, alkaline water.
The "risky" middle ground
- Cardinal and neon tetras – Some lists include them. They occasionally survive if raised with small angels in a large school, but it's still a gamble.
- Dwarf gourami – Praised by some keepers, called quarrelsome by others, and store stock in the US has a reputation for disease problems. Start with pearl or honey gouramis instead, and quarantine any gourami.
Specific Pairings People Ask About
Angelfish and guppies
Temperatures overlap around 78°F (26°C), but adult angels bully and eat guppies and their fry, and fancy male guppies are both prey and a fin target. The stress leads to disease. It might work in a very large, densely planted tank, but it's generally not advised.
Angelfish and discus
Possible, but only for experienced keepers. Discus want 82–86°F (28–30°C) and soft, acidic water. Angels outcompete them at feeding and turn nasty when spawning. If you try it:
- Use a 75-gallon (284 L) or larger tank
- Keep 5–6 or more discus
- Quarantine both species, since they share parasites
- Consider altum angels, the commonly cited gentler pairing (though they're more delicate)
Angelfish and gouramis
Pearl, honey and blue/opaline gouramis are the usual picks. Plan on 30 gallons (114 L) or more with plants. Gouramis may snack on angel eggs, and two male gouramis may squabble, so keep an eye on them.
Can angelfish live alone?
Yes. A single angel can do fine in a community tank and is arguably calmer. Many keepers prefer a pair, or a group of 5–6 or more, to spread aggression. Groups of 2–3 are the problem: a pair forms and harasses the leftover fish. A good method is to buy about 6 juveniles, let pairs form naturally, and rehome the extras.
Sample Stocking Plans
| Tank | Angels | Mid-water | Bottom |
|---|---|---|---|
| 29 gal (110 L) tall | 1 pair | — | 6 corydoras + 1 bristlenose pleco |
| 55 gal (208 L) | 4 young angels | 10 rummy nose tetras | 8 corydoras + 1 bristlenose pleco |
| 75 gal (284 L) | 6 angels | A school of rainbowfish | Corydoras + keyhole cichlids |
In the 55 and 75, expect to rehome some angels once pairs form. Add fish gradually and let the filter catch up between additions.
Introducing Tank Mates and Reducing Aggression
- Add angels as juveniles alongside or after the peaceful mates so the pecking order forms before angels are adults.
- Quarantine every newcomer for 2–4 weeks. Treat this as standard practice, not an optional step.
- Build vertical cover with driftwood, sword plants and broad-leaf plants, and break up sight lines.
- Rearrange the decor before adding new fish so territories reset.
- Feed well and spread the food so bottom feeders get their share.
- Plan for breeding. A spawning pair claims a patch, often a broad leaf or a piece of slate, and chases everything. Leave room or have a spare tank ready.
- Keep a hospital or backup tank for any fish that doesn't fit in.
Common Mistakes and Troubleshooting
- Neons with tiny angels. It works for a while, then the neons vanish 6–12 months later.
- Three angels in a small tank. The pair forms and harasses the third.
- Ragged angel fins. Find the nipper; serpae tetras and barbs are common culprits.
- Sudden aggression from a pair. They're likely spawning. Add a divider, remove the eggs, or move the pair.
- Thin bottom feeders. Angels steal sinking food. Feed sinking wafers at lights-out or in two spots at once.
- Clamped fins or hiding. Check for a temperature mismatch (goldfish or cool-water species) and test water quality first.
Frequently Asked Questions
How many angelfish can go in a 55-gallon community tank?
About 4 young angels alongside community fish. Expect to rehome some once pairs form, since a spawning pair needs space and will push the others around.
Can angelfish live with bettas?
It's not recommended. Both fish have long, flowing fins, and each may target the other's, which leads to stress and injury.
Will angelfish eat neon tetras?
Yes, adult angels commonly eat neons and other small tetras. Raising them together from small sizes in a big school sometimes helps, but it remains a risk.
Can angelfish live with shrimp?
Expect losses. Cherry shrimp are food, and even larger adult shrimp only have a chance in heavily planted tanks with plenty of cover.
What are the best bottom dwellers for angelfish?
Corydoras in groups of 5–6 or more, a single bristlenose pleco, and kuhli loaches. All stay near the substrate and out of the angels' way; just make sure sinking food actually reaches them.
Can angelfish live with oscars or African cichlids?
No. Oscars and most large cichlids are aggressive enough to injure or eat angels, and African cichlids need hard, alkaline water that doesn't suit angels.
Build Your Angelfish Community
Start with the angels' adult size, then choose mates that pass all three filters and fill the bottom and middle of the tank. When you're ready to pick your centerpiece fish, browse angelfish, discus, rams and cichlids on FishyHub.
