Hum... you had Bubba for quite a while and she still refuses to eat . Other than trying to reduce stress by covering 3 sides of enclosure and placing in area of no traffic, can only say to try and keep offering live small items about distance between frog's eyes (insects) or same length as frog (earthworms). Maybe your frog just does not like captivity (some toads are like that) or is very stressed from all the force feeding. By the way; "helechos" are ferns .