There is no substitute for practical experience with compatibility, but there are a number of ways to gain a starting basis.
The compatibility application at iFishNY is set up intentionally to be conservative. If there's a low chance two types of fish won't get along, we list them as medium/low compatibility. This could be based on aggression but also on more subtle factors.
The sources of information for creating the application include personal experience, emails received from readers and a review of as many internet sites as possible. We continually accept suggestions for improvement.
Select a fresh water fish for compatible combinations:
Select a fresh water fish and another fish for compatibility comparison:
South American Cichlid
Lake Tanganyika Cichlid
West African Cichlid
Lake Victoria Cichlid
South American Cichlid (Dwarf)