These breeding centers, seeking new market niches, create fish breeds that would never occur in nature. Fish Facts Fish are wonderful creatures with individual personalities and attributes that most people know little about. Sadly, the pumps and filters necessary in many home aquariums can interfere with this communication. Most fish enjoy companionship and develop special relationships with each other. One South African publication documented the relationship between Blackie, a goldfish with a deformity that made it nearly impossible for him to swim, and Big Red, the larger fish who shared his tank.
Fish enjoy tactile stimulation in their relationships and often gently rub against each other.
Please don't support the tropical fish trade by purchasing fish . However, you can make their lives easier by duplicating their natural environment as closely as possible. While no confined fish can live a natural life, the following tips will help make them as happy as possible. The more space that fish have, the happier and healthier they will be. Allow a minimum of 12 square inches of water surface per inch of fish.