Why is the plecostomus bad for the environment?

What do kissing fish eat? What are the nutrients from decomposing salmon used for? What is the long vertical string of bubble like things coming out of the rear of your goldfish that looks like a tube which it releases and it floated to the top? What are accepted method of disposing of koi pond water? How does waste kill fresh water fish? When you flush a goldfish down the toilet does it grow big and ugly? After just buying a male and female guppy how long does it take to get the female pregnant in a one gallon fish bowl? What is the hink pink for large rock container? Are boxfish poisonous? How is a marine biome differ from a fresh water boime? Which species do the menhaden fish belong to? Can you seal a pond using sheet-rock scraps? How can you become a vampire without being bitten? Are there sharks around Canada? What eats hogfish? 50 of all fish and shellfish are harvested from this ocean each year.? What is the Tagalog term for seahorse? How many eggs do seahorse produce each time? How do you mate 2 guppies? How might the structure of the cell membrane in an arctic fish differ from a tropical fish?