Fish Compatibility Chart

Fish Compatibility Tooltips & Care Level Indicators

✅ Yes – Generally peaceful together. Compatible in most setups with proper tank conditions.

⚠️ Caution – May coexist under certain conditions (e.g., tank size, gender mix, temperament). Close monitoring recommended.

🚫 No – Not recommended. High risk of aggression, stress, or predation.

Species	Care Level	Tooltip / Description
Betta	🟠 Moderate	Solitary by nature; best alone or with peaceful bottom dwellers. Sensitive to tankmates and current.
Angelfish	🟠 Moderate	Semi-aggressive; requires space and compatible tankmates as they mature.
Cory Catfish	🟢 Easy	Peaceful bottom dweller; thrives in groups and stable water.
Danios	🟢 Easy	Hardy schooling fish; great for community tanks.
Discus	🔴 Advanced	Sensitive to water quality and temperature; best for experienced aquarists.
Gourami	🟠 Moderate	Can be territorial; do well in calm environments with careful tankmate selection.
Goldfish	🟢 Easy	Cool-water species; not compatible with tropical fish due to temperature needs.
Guppies	🟢 Easy	Beginner-friendly livebearers; very peaceful and prolific breeders.
Mollies	🟢 Easy	Adaptable and hardy; do well in community tanks.
Neon Tetras	🟢 Easy	Peaceful schooling fish; prefer stable, low-light environments.
Platies	🟢 Easy	Colorful and active; great for beginners and community setups.
Swordtails	🟢 Easy	Energetic and hardy; males may show mild aggression toward each other.

Species	Care Level	Tooltip / Description
Clownfish	🟢 Easy	Hardy and peaceful; great for beginners and nano reefs.
Damselfish	🟠 Moderate	Colorful and hardy but can be aggressive in small tanks.
Tangs	🟠 Moderate	Require lots of swimming space; prone to ich without good water quality.
Wrasses	🟠 Moderate	Active and varied; some species are reef-safe, others are not.
Gobies	🟢 Easy	Peaceful bottom dwellers; great in nano and reef tanks.
Cardinalfish	🟢 Easy	Calm and social; ideal for peaceful community setups.
Blennies	🟢 Easy	Comical and reef-safe; good algae grazers.
Dottybacks	🟠 Moderate	Vibrant and territorial; better in larger setups with hiding spaces.
Angelfish (Dwarf)	🟠 Moderate	Beautiful but may nip at corals; behavior varies by individual.
Firefish	🟢 Easy	Shy and peaceful; needs a covered tank to prevent jumping.
Hawkfish	🟠 Moderate	Perch and pounce hunters; may bully small tankmates.
Basslets	🟠 Moderate	Bright and hardy; can be territorial in smaller tanks.