tetras
Small aquarium swimmers
Tetras are small, colorful freshwater fish popular in home aquariums.
Native to South American rivers, they typically have bright, iridescent coloring and swim in schools: neon tetras, cardinal tetras.
Their hardiness and peaceful temperament make them favorites among aquarium hobbyists.
The name comes from a Greek root meaning four, referring to a feature of their teeth.
Large storage vessel
- schoolingFormal education received
- filterPorous separation device
- heaterDevice producing warmth
- pHMeasure of solution acidity
community tank · substrate · lighting · bubbles · ornaments · thermometer · aeration · maintenance
Formal education received
- shoalingWater becoming less deep
- omnivorousConsuming all foods
- tropicalOf hot, humid regions
- speciesFinest taxonomic rank
neon · cardinal · ember · lemon · Congo · bloodfin · freshwater · South American
Inert illuminating element
- iridescentShowing shifting spectral colors
- vibrantFull of life, intensity
- stripeContrasting linear marking
- fluorescentEmitting light when energized
shimmering · brilliant · hues · red · blue · silver · glow · contrast
Greek warrior women
- riverLarge flowing watercourse
- streamSteady continuous flow
- blackwaterToilet waste or tannin-stained swamp
- habitatOrganism's natural environment
ecosystem · tropical · South American · tannins · soft water · acidic · planted · riparian
Number after three
- GreekOf Athenian origin
- geometryScience of spatial relationships
- prefixRoot-modifying front element
- four-sidedHaving four straight boundaries
polyhedron · mathematics · shape · structure · molecular · chemistry · carbon
tank
Large storage vessel
pH · community tank · substrate · lighting · bubbles · ornaments · thermometer · aeration · maintenance · breeding
schooling
Formal education received
- shoalingWater becoming less deep
- omnivorousConsuming all foods
- tropicalOf hot, humid regions
species · neon · cardinal · ember · lemon · Congo · bloodfin · freshwater · South American · peaceful
neon
Inert illuminating element
- iridescentShowing shifting spectral colors
- vibrantFull of life, intensity
- stripeContrasting linear marking
fluorescent · shimmering · brilliant · hues · red · blue · silver · glow · contrast · aquascape
Amazon
Greek warrior women
- riverLarge flowing watercourse
- streamSteady continuous flow
- blackwaterToilet waste or tannin-stained swamp
habitat · ecosystem · tropical · South American · tannins · soft water · acidic · planted · riparian · rainforest
four
Number after three
four-sided · polyhedron · mathematics · shape · structure · molecular · chemistry · carbon
tetraspiranhas
Carnivorous South American fish
cichlids · bettas · koi · saltwater fish · snakeheads
- neon tetraSmall iridescent aquarium fish
tetra, tetrad, tetrapod, tetrahedron, tetracycline, tetrahedral, tetrameter, tetravalent, tetrarch