Freshwater fish are not marine mammals. Marine mammals, like whales and seals, live in saltwater. They need the ocean to survive. Some marine mammals can enter freshwater, but they are different from freshwater fish. Marine mammals mainly include groups called cetaceans and pinnipeds. Freshwater fish possess gills that allow them to extract oxygen from water. … Read more
Most freshwater fish are not colorblind. They see fewer colors than humans do. Some species can detect ultraviolet light, while others have different color vision abilities. Generally, fish focus on shades and objects rather than colors. This skill helps them spot shapes and shadows clearly in their underwater environment. Freshwater fish have specialized cells in … Read more
Most freshwater fish are cold-blooded, also known as ectothermic. They rely on their environment for body temperature regulation. This temperature sensitivity affects their metabolism and behavior. Unlike mammals, they do not generate internal heat. Freshwater fish, like opah, lay eggs and thrive in specific water temperatures. Survival in various environments hinges on several factors. Freshwater … Read more
Yes, freshwater fish, especially catfish, are attracted to blood. They detect scents in the water, which makes blood-based bait effective. Studies indicate that sharks prefer fish blood over human blood due to its association with food. While all fish sense blood, smaller fish often engage with it more actively. Research experiments have tested this theory. … Read more
Freshwater fish live in low-salt environments, while saltwater fish thrive in high-salinity oceans. They differ in their survival needs and salt concentration. Freshwater fish absorb water and keep high salt levels. These types are not synonymous, as they cannot survive in each other’s habitats. Some species, like salmon, can adapt to both environments. One primary … Read more
Freshwater fish are ammonotelic. This means they mainly excrete ammonia as their nitrogenous waste. They need plenty of water to dilute ammonia, which is toxic. Most fish use this method, but some species can change ammonia into safer substances like urea to reduce toxicity. Ammonia is a toxic substance. In high concentrations, it can damage … Read more
Freshwater drum, or gaspergou, are good to eat. Their firm, mild meat resembles saltwater fish. Smaller drum under 2 lbs are tastier, as larger ones can be tough. They are high in protein and vitamins. Freshwater drum are excellent for cooking methods like frying and smoking. Try them with various recipes for a delicious meal. … Read more
Freshwater angelfish are not true schooling fish, but they are social. They thrive in small groups and may show territorial behavior when breeding. They need larger tank requirements to accommodate this behavior. Adding peaceful dither fish can help create a balanced aquarium setup, enhancing their social interactions. Compatibility is critical when selecting tank mates for … Read more
Freshwater angelfish can be community fish if you choose suitable tank mates. They are peaceful cichlids but can show aggression, so avoid aggressive species. They may spawn in well-maintained tanks. A good aquarium setup and careful mate selection improve their compatibility with other fish. To care for Freshwater Angelfish, maintain a tank with a capacity … Read more
Freshwater fish and tropical fish are different. Freshwater fish live in water with no salt. Tropical fish can be in freshwater or saltwater. The term “tropical” describes warm water environments. Many popular aquarium tropical fish are freshwater species, which prefer temperatures between 75-80°F for optimal health. On the other hand, tropical fish come from warmer … Read more