Fish Behavior

Ctenophores, also called comb jellies, are not filter-feeding fish. They are carnivorous predators. They use cilia to create a feeding current and capture small prey like zooplankton. Ctenophores rely on this method for hunting rather than filtering food from the water. Their impact on ocean life is significant. Ctenophores can consume large quantities of zooplankton, … Read more

Crocodiles are more closely related to mammals than to amphibians or ray-finned fish. They share a recent common ancestor with mammals, including primates. In evolutionary terms, crocodiles branched off after amphibians and ray-finned fish, which gives them stronger connections to mammals. In terms of physical characteristics, crocodiles exhibit traits that appeal to both amphibians and … Read more

CPD fish are schooling fish. They feel secure in groups, which aids in predator evasion and finding food. A minimum of six CPDs is necessary, but a group of 10–15 is better for their comfort. Their timid nature makes larger groups beneficial for their overall well-being and breeding success. To care for CPD schooling fish, … Read more

Costa Rica’s fish stocks are overfished, which harms biodiversity and species such as sharks. Policies under President Carlos Alvarado reduced protections, worsening the situation. Strong management and international agreements are vital to restore healthy fish populations and protect the ecosystem. To combat this problem, Costa Rica has implemented several sustainability and conservation efforts. The government … Read more

Corydoras, commonly called corys, are social fish that prefer to shoal rather than school. They thrive in groups of at least five to six of the same species. This gregarious nature enhances their safety in numbers, reduces stress, and improves their feeding habits. Corys make great tank companions for other peaceful fish. In a community … Read more

Coral reefs and fish have a symbiotic relationship based on mutual dependencies. Fish species depend on corals for food and habitat. In turn, fish grazing supports coral reproductive success. Some fish also help control coral diseases, which promotes the health of the entire reef ecosystem. Furthermore, coral reefs offer a breeding ground for many fish. … Read more

Coral reefs are important homes for many fish and marine species. They host a variety of life, including sponges, oysters, clams, crabs, sea stars, and sea urchins. This rich biodiversity supports healthy ocean ecosystems and boosts local fisheries. Coral reefs play a key role in sustaining marine life. Coral reefs enhance the health of marine … Read more

Coral reef fish can be hard to keep alive. They live in saltwater, which is more complex than freshwater. A reef tank requires careful research and knowledge. The costs of fish and corals can be high. Proper care and understanding are crucial for successful maintenance and a healthy aquarium environment. To enhance the survival of … Read more

Convict cichlids, scientifically named Amatitlania nigrofasciata, are not schooling fish. They belong to the cichlid family and are found in freshwater habitats in Central America. Adults display territorial behavior, while juveniles may school when feeding on plankton. They are closely related to other cichlid species. For proper care, it is crucial to maintain a tank … Read more

Comet goldfish are commonly used as feeder fish in North America. Anglers use them as bait to catch larger fish. Their low price also makes them popular as prizes at carnivals and entertainment venues. This versatility makes comet goldfish both functional for fishing and entertaining for events. However, using comet goldfish as feeder fish has … Read more