Freshwater fish use sound to survive. They communicate, find food, and escape predators through sound. Fish have internal ears and a lateral line to sense vibrations. Acoustic signals guide their behavior during spawning and navigation. Understanding sound reduces stress on fish and aids in habitat selection, promoting healthier environments. Additionally, sound affects fish social structures. … Read more

Symptoms of foodborne illness from bad fish often appear within 30 minutes to 6 hours after eating. Common symptoms include nausea, vomiting, and diarrhea. These can last from a few hours to several days. If symptoms persist or worsen, seek medical help to ensure proper care and recovery. Treatment focuses on hydration and rest. Doctors … Read more

To feed new freshwater fish, wait at least a few hours after adding them to the tank. If they are the only fish, do not feed them for 24 hours to reduce stress. Use Nutrafin AquaPlus to help restore their natural slime coating. Avoid pouring the water from the bag into the tank. Follow these … Read more

Freshwater fish face water loss in saline water, a hypertonic solution. This loss raises the salt concentration in their bodies. As a result, it can disrupt their blood’s acid–alkaline balance. These changes may cause stress, impacting their overall health and behavior. High salinity environments can lead to dehydration in freshwater fish. This may result in … Read more

Plastic plants can be unsafe for betta fish. They often have sharp edges that may snag fins and cause injuries. Silk plants are a better choice because they are softer and safer for fish. Always check for sharp spots on any plant before adding it to your aquarium. This helps protect your betta’s health and … Read more

Programmed lighting greatly affects fish breeding. Using artificial lighting and changing photoperiods can delay sexual maturation. This allows fish farmers to control breeding cycles and boost growth. As a result, fish can reproduce outside their normal cycles, improving overall fish farming efficiency. In aquaculture, controlled lighting schedules can stimulate fish to breed during optimal times. … Read more

High pH levels (above 9.5) harm fish health. Short-term exposure is not usually deadly, but prolonged exposure (9.5 to 10) can damage gills, skin, and eyes. Fish may show signs of stress, impacting their behavior. Keeping a balanced pH level is essential for the well-being of fish in their aquatic environment. Low pH can increase … Read more

Fishing down marine food webs is widespread in 30 of 48 large marine ecosystems. It begins with higher catches of small pelagic fish. This results in fewer top predators, as larger fish are selectively removed. Consequently, lower trophic-level species decrease in contribution, indicating a major shift in ecosystem dynamics. Multiple hypotheses explain these impacts. One … Read more

Fishing down marine food webs is widespread, impacting 30 of 48 large marine ecosystems. This practice targets small pelagic fish and lower trophic levels. Since 1982, overexploitation has significantly reduced demersal biomass and led to declines in top predator populations, harming marine ecosystems overall. Research shows that as large fish populations decline, the balance of … Read more

To marinate fish, combine ½ cup olive oil, 2 tablespoons fresh lemon juice, and chopped fresh herbs like cilantro, basil, rosemary, or thyme. Brush the marinade onto the fish, ensuring it is well coated. Let the fish sit for 15-30 minutes to soak up the flavors before cooking. For grilled fish, use a slightly thicker … Read more