I for one am very impatient and can't stand wsiting for my fish to grow or for pregnant fish to give birth. To speed up this process go to your system clock i.e. the time in lower right hand corner of your taskbar. when in game impregnate fish,seed the eggs.ect then exit out of game. Now go to your clock on your computer and forward it ahead 2 hours hit apply and restart the game and now your fish are all adult. hope this helps people hit sure helped me.