Here are the few images of the game that I could find on intenet. The different types of ponies (adults).
And glimpses of the game's menu.
The game allowed the existence of different types of ponies earth, water, fire, air, felines, celestials and pegasus. Each with its own design, the reproduction made it possible to mix the colors of both parents with the color wheel. If we coupled 2 different types (e.g. air + water) there was a one in 2 chance that the baby was of a type or other. Gestation lasted 10 days, and the pony was an adult at 20 days. (All in real time).
They had to be fed, brushed, stroked. By being offline, the ponies risked nothing. They could starve after 100 days. If not, were immortal.
You could also (as an adult), train them, for free once a day to gain a skill point. There was magic, and other skills that I don't remember.
There was also an opportunity to personalize them by buying "genes" at the store. He could change the skin, the mane, the bottom, or propose clothes to dress them.
The game was not animated, you just had to click on the different actions to perform them.