Read this! Frog Forum - Pacman and Horned Frogs - Ceratophrys - Care and Breeding

You haven't researched enough if you have no heat source for your frog. Also your tank is too large even divided.

These frogs need temps that are 80° to 83° during the day and 76° to 79° at night, but hover around 78° at night. You must have a hygrometer so you know how humid the enclosure is. They need 70% to 80% humidity.

What size are the crickets?

Read the link I posted and any indepth questions feel free to ask.