Category: Aquatic life

According to pond experts, lily pads should ideally cover only 50-60% of a pond's surface to maintain a healthy ecological balance. These picturesque aquatic plants offer significant benefits but require careful management to prevent their potential negative impacts on water health and wildlife.

According to the EPA, the maximum safe level of nitrite in public drinking water is 1 milligram per liter (mg/L). However, determining a safe level of nitrite depends entirely on the specific environment, from the water we drink to the food we eat and even the water in our home aquariums.

In a study published by Kasetsart University, scientists found that goldfish possess significant levels of digestive enzymes, including amylase, protease, and lipase. While all animals produce enzymes for digestion, a goldfish's enzymatic profile is uniquely adapted to its omnivorous diet and specialized digestive anatomy, prompting the question: does goldfish use animal enzymes in the same manner as mammals?

Approximately 3% of adults worldwide identify as pescetarian, which is often confused with being a vegetarian who eats fish. The phrase 'vegetarian fish' actually refers to two distinct concepts: naturally herbivorous fish species and plant-based culinary alternatives designed to mimic seafood.

Starfish, or sea stars, can contain between 8% and 22% protein by dry weight, though this varies significantly by species and season. These marine invertebrates are more than just a pretty face on the ocean floor; their body composition offers surprising insights into their biology and potential uses, including a high mineral count and rich amino acid profile.

Many people assume all marine life has red blood, but some creatures, most famously the Antarctic icefish, have a clear circulatory fluid instead. The answer to what seafood has no blood extends beyond this single species to include a fascinating array of invertebrates with unique survival strategies.

With more than 2,200 species worldwide, the catfish is one of the most diverse groups of fish, but one common misconception persists: that they are exclusively bottom feeders. The reality is far more complex, with their diets and feeding zones varying significantly across different species and environments.

In the 1930s, swallowing a live goldfish became a notorious college fad. However, when it comes to nutrition, a definitive calorie count for a live goldfish for human consumption is non-existent because the practice is both inhumane and unsafe. Instead, the real nutrition discussion focuses on providing a healthy diet for the goldfish itself.