Characidae
Paracheirodon
2.50 cm
Maxes out at around an inch.
Peaceful, Community
Peaceful, though care should be taken when selecting tank mates, as their small size makes them easy prey for most larger fish.
Insectivore, Omnivore
38.00 L
50.00 cm x 25.00 cm
25.0 C - 35.0 C
pH of 3.0-7.5, prefers lower, but long term tank kept specimens can adapt to conditions on the higher end of their tolerance range.
Other
A small schooling fish, found in blackwater streams/rivers. Can show a bit of red like their close relative P. innesi, though typically does not. I do not know why they turn certain colors on or off, but they can turn their red on or off (usually keeping it off), and turn their "neon" bar from a deep blue to a green, sometimes even a copper orange.
Egg-scatterer
Like most egg scatterers, they spawn in the morning as the sun rises. Eggs are (ideally) scattered around masses of vegetation (or simulated vegetation), though they can be scattered randomly in open water. Eggs are photosensitive and cannot be exposed to light for the few days it takes them to hatch and become free swimming. Eggs may need methylene blue to prevent the growth of fungus.
150 fry
Simulated rain triggers spawning in larger breeding setups, but a drop in pH simulating the washing of tannins (and of course rainwater) downstream is enough to trigger spawning.
Fry are extremely small and require live foods such as vinegar eels or infusoria. They can eventually be transitioned to newly hatched brine shrimp and dry foods as they get bigger.