In actual fact, the term "penny turtle" is just the name of baby turtles. So depending on the type of turtle you have, it can grow to different sizes. If you're looking for a small turtle/terrapin, I highly recommend the musk turtle, as it grows to :
Females - 6-10"
Males - 3-5"
I have had a musk turtle for seven years now and at four years old he stopped growing at 3". He's very friendly and likes to be picked up, although when put with another turtle, they do get aggressive.
In conclusion, penny turtle's are quite rare to buy, I'm from Essex and I assure you they aren't for sale in the U.K! I got my ex-girlfriend a penny turtle but I ordered it from the states and it cost me $130!! so they aren't the cheapest pets either.
Hope this helps!
Dave x
turtles grow to their enviorment. so however big your turtles cage is then your turtle can get some where around that size!
Big as Hell
Oh they don't grow
they get big as a big ball
They grow to about 10 in long
Baby turtles typically grow to be around 2-6 inches in size, depending on the species.
pet turtles
they grow to be 45 inches:)
It depends which species ! Some sea-turtles can reach two metres across the shell !
as big as a dinner plate / big
they live on Jupiter and the get so big that they can fly to earth from there in an hour! they must be huge! BE WARNED NOT A HOUSEHOLD PET (OR A GARDEN ONE!)
Depends on the species. Red eared sliders can grow to about a foot and other sliders can grow a simular size. Many painted turtles will grow about nine inches (however southern painted turtles usually stay slightly smaller). Sea turtles (which are not really available in the pet trade), most species of snapping turtles, and most species of tortoises grow many feet long. Unlike mammals, male turtles stay smaller than female turtles so they generally make better pets. The smaller the turtle the less space, time changing tanks, food, etc. it consumes. Musk turtles, male map turtles, and male painted turtles tend to be the smaller adult turtles.