What is an angler's assistant?

How many days can you not feed a betta? Are clownfish habitats changing? When should you put an expectant mother tetra in a guppy breeder? Does a penguin eat fish of fries? Is there a blinking fish? Do dolphins kill the same amount of people as sharks? What is a snaky fish? What are match attacks? Do turtles eat koi fish? Will alum kill aquarium snails? What do koi carp eggs look like? Do fish stay at the bottom of the tank when they are having babies? Does goldfish have good memory? Are rocks producers? Are boatmen consumers? What is the nutritional value of spotted sea trout? What is the age of muturity for the great white shark? Can we stop the oil spill in Gulf of Mexico? How do you wash your tank with a plecostamus in it? What are tah shell of shrimp clams and crab made of?