I have found that bullfrog eggs from the same batch morph at different times.8 mo. to 2 yrs.They could still take months after back legs.Once they get front legs,which appear over night,you'll be getting a frog soon.If you look close at some point you can see the front leg folded up under the skin right before they pop out fully developed.You may be destracted by watching the tail shrink, but its the streching of the face that is WEIRD! What I'd like to know is how to get them as frogs to eat pellets.I think that's what the big frog food farms do.Get ready for lots of crickets.My adults eat adult mice! Vic