Sea Monkeys
At first I thought that you wanted to know if Sea Monkeys fit into a certain scale or what they could be used for at various scales. Like at 54mm, they can be used as jumbo shrimp, or at 28mm, they make great lobsters, which they do. But, I guess you want to know how big they are. Mine got up to a centimeter or so. It was hard to judge, though, because of the refraction of the container.
Go to
http://www.exploratoy.com/
It\'s the Official Sea Monkey site. I think they\'ll have info on growing them in larger containers than the standard Sea Monkey Zooquariums or whatever they call them. I\'ve had Sea Monkeys on several occasions over the years and they\'re pretty cool. They come in an envelope as little eggs. You add these to water into which the salty briney powder has already been added. Almost immediately, depending on your eyesight, you can see them swimming around right after they hatch.
They eat Sea Monkey Chow, a yellow powder which comes in another envelope. You get a little scoop to dole out portions.
They do breed amongst themselves after a while and carry eggs around in sacs. One thing that I thought was really cool is how the eggs can hatch after being dried out a couple of times. If they die or you forget about them, just let the water dehydrate completely and after it\'s all dry, add more water. Some of the encapsulated eggs that did not hatch the first time will hatch after one or two more dehydrations.
As far as which time period the architecture should be, mine seemed to prefer Gothic Revival, although other people have had success with Sengoku Era Japanese and even 23rd Dynasty Egyptian.
Rumour has it that Sea Monkeys are the main ingredient in popcorn shrimp.