In case you are wondering, FIFA states that the optimal size of a soccer pitch is between 69,000 and 86,000 square feet. An American football field commonly measures around 57,564 square feet . Of course, if you want an exact measurement conversion for land acreage then this handy conversion tool will help you...
TYPES OF GOLDFISH. There are over 100 types of goldfish! All of the goldfish breeds belong to one of two types. The two types are the ORDINARY goldfish and FANCY goldfish. Ordinary goldfish have only one tail, while fancy goldfish have two tails. The common goldfish is an ordinary goldfish. It has a narrow body, which makes it a fast swimmer.
Having not read enough about varieties of gold fish, i simply purchsed some pretty, colorful or different looking fish in pairs. i believe i have 2 boggle eye or telescopic eye (black), and a few other fantail species of different calico type colors. i also added some single tailed goldfish who have grown some absolutely gorgeous long flowing tails (different colors, some solid gold, some calico.. and had at one time two of what i call bobble heads due to the odd growth on their heads.