What does it mean if goldfish constantly swim?

I have to sell a Shimano Banham 100EX and 2 Kastmaster Acme Tackle Co for two different weights of fish. Would these be worth any money? How do you remove particulates from aquarium water? Are mysteriously dying fish and birds one sign on the end of times? Are axolotls blind? How many fish can you have in a 20 gallon tank? Do sharks eat producers? How do fish make babys? How does a grey nurse shark protects himself from great white shark? What is meant by maximum sustainable yield for fish stocks and the fishing industry? How do you get fish bucks in tap fish 2 without downloading them? Are bay scallops stingray? Why does the fishball turned dark blue although fishball do not contained starch? What is the collective name of fly fishing feathers? Will your angelfish mix with your plecostomus? Do turtles eat koi fish? How does fertilizer kill fish and other aquatic life? Why when the shower is used is there a nasty fishy smell coming from the cupboard behind where the shower is located? How many eggs does a seahorse lay? Can injured guppies be put together? Where do clownfish originate from?