tankmates
Shared aquarium residents
Tankmates are fish or other aquatic creatures that share an aquarium.
The term implies compatibility—species that can coexist without eating, harassing, or outcompeting each other: Bettas need peaceful tankmates that won't nip their fins.
Aquarium hobbyists research tankmate compatibility before adding new fish to an established tank.
Small tropical aquarium fish
- tetrasSmall tropical aquarium fish
- cichlidsSpiny-finned freshwater fish family
- angelfishFlat-bodied ornamental tropical fish
- plecosAlgae-eating aquarium catfish
catfish · betta · goldfish · koi · mollies · swordtails · gourami · loaches
Free from disturbance
- aggressiveHostile and confrontational
- territorialDefensive about owned space
- temperamentInborn behavioral nature
- behaviorManner of conducting oneself
hierarchy · chasing · bullying · docile · timid · boisterous · predatory · community
Formal education received
- shoalingWater becoming less deep
- symbiosisInterspecies biological interdependence
- coexistenceSimultaneous presence together
- harmonyAgreement or musical blend
territory · boundaries · line of sight · zones · bottom-dweller · algae eater · cleanup crew · breeding
Measured heat intensity
- pHMeasure of solution acidity
- hardnessResistance to penetration
- filtrationSeparating solids from liquids
- plantsPhotosynthesizing rooted organisms
substrate · decorations · caves · driftwood · aquascaping · lighting · flow · oxygenation
guppies
Small tropical aquarium fish
- tetrasSmall tropical aquarium fish
- cichlidsSpiny-finned freshwater fish family
- angelfishFlat-bodied ornamental tropical fish
plecos · catfish · betta · goldfish · koi · mollies · swordtails · gourami · loaches · barbs
peaceful
Free from disturbance
- aggressiveHostile and confrontational
- territorialDefensive about owned space
- temperamentInborn behavioral nature
behavior · hierarchy · chasing · bullying · docile · timid · boisterous · predatory · community · pairing
schooling
Formal education received
- shoalingWater becoming less deep
- symbiosisInterspecies biological interdependence
- coexistenceSimultaneous presence together
harmony · territory · boundaries · line of sight · zones · bottom-dweller · algae eater · cleanup crew · breeding · overcrowding
temperature
Measured heat intensity
- pHMeasure of solution acidity
- hardnessResistance to penetration
- filtrationSeparating solids from liquids
plants · substrate · decorations · caves · driftwood · aquascaping · lighting · flow · oxygenation · nitrogen cycle