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Green Neon Tetra
Paracheirodon simulans
A smaller, more iridescent relative of the Neon Tetra with a brilliant green-blue horizontal stripe. Peaceful nano fish for soft, acidic planted tanks.
Care Parameters
Adult size
2.5 cm
Min tank
30 L
Temperature
22–28°C
pH
5–7
GH
1–8 dGH
Diet
Omnivore
Temperament
Peaceful
Water zone
Middle
Difficulty
Beginner
Schooling
Schools of 10 or more.
Suitable Plants
5Cryptocoryne balansae
Care profile for Cryptocoryne balansae: medium light, low CO₂, intermediate difficulty.
Monte Carlo
Care profile for Monte Carlo: high light, medium CO₂, intermediate difficulty.
Bacopa caroliniana
A hardy, straightforward stem plant with thick, oval leaves on upright stems. One of the easiest background plants, tolerating a wide range of conditions and requiring minimal maintenance.
Peacock Moss
A delicate aquarium moss with fine, feathery fronds that create a soft, flowing carpet. Attaches easily to hardscape and tolerates a wide range of conditions.
Ludwigia arcuata
A delicate stem plant with thin, needle-like leaves that turn deep red under high light. Also known as Needle Leaf Ludwigia, it adds fine texture and vibrant color to aquascapes.
Compatible Invertebrates
4Zebra Nerite Snail
A striped, hard-working algae grazer that never overpopulates: its eggs are laid all over the glass but only hatch in brackish water, so they simply stay put. Prefers harder water (GH 6-20 dGH) with calcium for a healthy shell; watch for escapes, as it can climb out of open tanks.
Amano Shrimp
The classic algae-eating workhorse shrimp, unmatched for clearing hair algae from planted tanks. Hardy at 3-15 dGH, but never breeds in freshwater: its larvae need brackish water, so all reports of 'Amano babies' in freshwater tanks are actually other shrimp species.
Vampire Shrimp
A large, impressive freshwater shrimp with fan-like appendages used to filter feed from the current. Can grow up to 15 cm and requires strong water flow and clean, well-oxygenated water.
R
Rabbit Snail
A large, striking freshwater snail with a conical shell and colorful body. Comes in orange, yellow, and dark variants. Active algae and detritus consumer, but slow breeder.
Suitable Equipment
5
Common Problems
5C
Cyanobacteria (Blue-Green Slime)
Slimy blue-green or dark purple patches with a foul odor.
waterO
Old Tank Syndrome
Water quality slowly worsens over months or years despite regular small water changes.
waterL
Low Filter Flow
The filter output weakens, reducing circulation and filtration.
equipmentF
Fin Rot
Fins look frayed, ragged or are visibly shrinking with white or red edges.
fishF
Fish Hiding or Chronic Stress
Fish hide constantly, refuse food and fade in color.
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