Without more information or a visual reference, it is difficult to determine whether it is a flounder or a halibut. Both fish belong to the flatfish family and can look quite similar. However, halibut are generally larger and have a more elongated body compared to flounder. Additionally, halibut have a more prominent lateral line and a different coloration pattern. It would be best to consult a fish identification guide or a knowledgeable source to accurately determine whether it is a flounder or a halibut. **

The value of a Baltic Sea flounder can vary depending on factors such as size, quality, and market demand. On average, a Baltic Sea flounder can be worth anywhere from $5 to $15 per pound. Prices may fluctuate seasonally and based on the availability of the fish in the market. Overall, the value of a Baltic Sea flounder is determined by market conditions and consumer preferences. **

Plaice and flounder are both flatfish, but they belong to different families. Plaice is a type of flounder that belongs to the Pleuronectidae family, while flounder is a more general term that refers to several species of flatfish in the families Pleuronectidae, Bothidae, and Paralichthyidae. In terms of appearance, plaice typically has orange spots on its brownish skin, while flounder can have a variety of colors and patterns. Additionally, plaice tends to have a more delicate and sweet flavor compared to flounder. **

Flounders and plaice are both flatfish, but there are some key differences between the two species. Flounders typically have a more oval-shaped body with both eyes on the same side, while plaice have a more diamond-shaped body with eyes on the right side. Additionally, flounders tend to have a smoother skin texture compared to the rougher skin of plaice. In terms of coloration, flounders are usually brown or olive with various patterns, while plaice are typically reddish-brown with distinct orange spots. **

Freshwater flounders are peaceful and can be kept with other peaceful, non-aggressive fish that are similar in size. Good tank mates for freshwater flounders include small to medium-sized community fish such as tetras, rasboras, gouramis, and small catfish species. It is important to avoid keeping them with aggressive or large predatory fish that may harm or outcompete the flounders for food. Additionally, it is best to provide plenty of hiding spots and plants in the tank to create a natural environment for the flounders and their tank mates. **

The main difference between the flounder, plaice, and turbot lies in their appearance and habitat. Flounders are typically smaller in size with a flat body and both eyes on one side of their head. Plaice have a more oval-shaped body and are usually larger than flounders. Turbots are the largest of the three, with a diamond-shaped body and a white underside. Additionally, they are found in different habitats, with flounders and plaice preferring sandy or muddy bottoms while turbot are often found in deeper waters. **

Self-luminous bodies are objects that emit their own light, as opposed to reflecting light from another source. Examples of self-luminous bodies include stars, the sun, and certain types of light bulbs. These objects generate their own energy through processes like nuclear fusion or electrical current, which produces light as a byproduct. **

No, the luminous clock is not radioactive. The luminescence in the clock is typically achieved using a phosphorescent material that absorbs light and then slowly releases it over time. This process does not involve any radioactive materials. The glow from the clock is simply a result of this light-absorption and emission process. **