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Special bacteria (chemosynthetic bacteria) live there which use the sulfur from the hydrothermal vents to make their own food. Other organisms, such as copepods (and other zooplankton), eat this bacteria. Other organisms, such as snails, shrimp, crabs, tube worms, and fish eat the copepods. Therefore, the number of organisms living in these vent systems are 10,000 times greater than areas in the ocean that do not have hydrothermal vents. These life forms would not be possible without the chemosynthetic bacteria, since sulfur is toxic to almost all other forms of life.
The deep ocean is deep and dark. It can have huge trenchs going down as high as Mt. everest. Not many fish live down there. There are some intresting life forms near Hydrothermal vents.
Yes
Sometimes.
fish with rice
Two of the most common poisonous fish are found in the Red Sea, these are,The Lion Fish and The Surgeon Fish
Common food allergens include nuts, fish, and milk.
It won't do much damage unless you have absolutly no ventalation. It is definetly better to have vents for gasses to escape fromt the water.If there is no ventalation than your fish could be more prone to disease and stress.
Bombay duck is a marine fish and is found in the waters off Maharashtra in the Lakshadweep Sea, whereas the common carp is a freshwater fish.
There are multiple diseases that can be inflicted on a betta. You can search on the web for some of the common diseases found in fish.
I believe the Most Coomon Fish in the Game "Fish Tycoon" are the ones found in "Common Eggs." These Fish are "Beta," "Sharks," "Fruitfish," "Spotanus," "Fatfish," and "Stickfish." The Most common Sub-Species are - Greenfin, Orange, Pink, Spined, Silky, and Twin-Fin.