Some info on both fish, maybe you can compare it and try.
Common names: Celestial Pearl Danio / Galaxy Rasbora
Family: Cyprinidae
Origin: Southeast Asia
Maximum size: 4cm <1"
Care: This is a relatively easy fish to care for, It has proven to be quite hardy and tolerant of a wide variety of water conditions. It should be kept in average community parameters: soft, neutral to slightly acidic water conditions and kept at a temperature of around 26C (78.8F). As a small fish you should choose tank mates with care that are not likely to eat the fish or ones that are boisterous. This may cause stress leeding ot inadvertant injury of the fish.
Common names: Nannostomus mortenthaleri - Coral Red Pencilfish
Family: Lebiasinidae. Subfamily: Pyrrhulininae
Origin: Known only from parts of the Rio Nanay, Peru
Maximum size: 1.2" (3cm).
Compatibility : It's peaceful with other species, but does not make an ideal community fish due to its small adult size. It's easily intimidated by larger tankmates and will not compete well for food with them. It is also the ideal snack for many fish often kept in community aquaria, such as angelfish, gouramis and larger catfish. Keep it alone or in a community of other tiny species, such as pygmy Corydoras, other similarly-sized characins, or small freshwater shrimp. It also makes a fantastic dither fish for many species of dwarf cichlid.
It's best kept in a group of at least 6 fish. Rival males are territorial with one another, but in a heavily-planted tank any serious damage can usually be avoided.
Hope it helps![]()
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