I dont know why with every challenge you increase the energy requirement. E.g the seaweeds requires 20 energy for vigger and 10 for smallwr. Then in the next challange it got to 24 and 12 . Not its 43 and 20. And for every thing that you have ro wait fir and to harvest it was free because the wait time was 3 hours to 5 hours. Now to oick them you need 45 energy per ingredient. I mean its just a way to make people fail except for rgose who spend real money and its just not worth it.