Your divider shouldn't be see through in this case. Your larger fantacy saw the little Albino as food because these frogs are canniblistic. You need to be more careful how you house your frogs.
Thawed chicken is the same as raw chicken. Its frozen raw and w en you thaw it out it is still raw its just no longer frozen. Understand? Id stay away from feeding meat such as this. Now you can feed them chicken livers and pieces of chicken hearts as a treat. Some breeders do this. I'm not saying you can't feed your frog the chicken its just risky. Try livers or hearts as a treat. These items even if you decide to still use the breast meat it should only be as a treat. I reccomend you don't use the breast meat anymore. Just my opinion. You should cook it first and make sure its completely cooled so you don't burn and kill your frog. Feed only small pieces. Same with the livers and hearts. Cook them and feed them to your frog in appropriate sizes. Like the size of the crickets your frogs eat and only as treats.