You definitely want to get him/her feeling secure. Plant a pathos. in with it. if this Cornuta is indeed W/C. then you will need to provide a more natural looking environment. PM Jessica or JIvoryII. from Ivory Reptiles or Mike from Mike's Phat. Phibs (Mikesfrogs) They all three have these frogs and succeeded in getting them settled fast and eating well.
Good luck.