Tropical community fish are those that will live happily in a mixed community, are not usually aggressive, and do not require special attention to their diet. Most will live happily in fairly soft to medium hard water and within a reasonable pH range, around neutral. Most of these fish are commonly available in aquatic stores.
|Fish type||Popular Examples|
| Barbs and Rasboras|
These are an active and colourful addition to any community tank. Not all are peaceful, and some grow quite large, but the species listed opposite are ideal for the general community tank.
|Cherry Barb (Barbus titteya)|
|Golden Barb (Barbus semifasciolatus)|
|Five-banded Barb (Barbus pentazona)|
|Harlequin Rasbora (Trigonostigma heteromorpha)|
| Corydoras catfish|
"Corys" are small, peaceful catfish which are ideal for the community aquarium. The commonly available species are generally hardy and easy to breed.
|Albino/Bronze Cory (Corydoras aeneus)|
|Peppered Corydoras (Corydoras paleatus)|
Hardy, active shoaling fish with no special requirements.
|Leopard Danio (Brachydanio rerio var. frankei)|
|Pearl Danio (Brachydanio albolineatus)|
|Zebra Danio (Brachydanio rerio)|
The commonly available and very popular Livebearers are generally hardy and easy to breed.
|Guppy (Poecilia reticulata)|
|Platy (Xiphophorus maculatus)|
|Swordtail (Xiphophorus helleri)|
The peaceful loach species make an interesting addition to the community aquarium. The species listed opposite are sociable and best kept in groups. Note that some other species of loach can be aggressive.
|Pakistan Loach (B. almorhae / lohachata)|
|Zebra/Candy-stripe Loach (B. striata)|
|Clown Loach (C. macracanthus)|
Rainbowfish are colourful and active shoaling fish, which are often overlooked as community fish, probably partly because the juveniles seen in the fish store are not showing their impressive adult coloration. Dwarf species are suitable for smaller tanks.
|Boeseman's Rainbow (Melanotaenia boesemani)|
|Dwarf Neon Rainbow (Melanotaenia praecox)|
|Lake Kutubu Rainbow (Melanotaenia lacustris)|
|Banded Rainbow (Melanotaenia trifasciata)|
catfish (Small species)
|Bristlenose Catfish (Ancistrus sp.)|
|Otocinclus Catfish (Otocinclus sp.)|
A small shoal of tetras will contribute little to the waste load of the tank. There are many smaller, peaceful species which are suitable for the community tank where there are no fish large enough to eat them. There are also a few larger tetras suitable for the community tank.
|Black Neon Tetra (Hyphessobrycon herbertaxelrodi)|
|Glowlight Tetra (Hemigrammus erythrozonus)|
|Neon Tetra (Paracheirodon innesi)|
|Rummy nose Tetra (Hemigrammus bleheri)|
Adults will be safe where smaller tetras might be eaten.
|Buenos Aires Tetra (Hemigrammus caudovittatus)|
|Congo Tetra (Phenacogrammus interruptus)|