Observe if the Texas is able to breath. If so, the best approach is to leave him alone Pulling a stuck fish by force is dangerous and can tear his mouth apart and kill him. He will be able to swallow it or spit it out eventually as the dead fish will decay in his mouth. Once I had a Green Terror got stuck with a small peacock for 3 days. Eventually, the dead peacock disintegrated and disappeared. But if you observed the Texas show stress of breathing, you have to perform an emergency operation by cutting up the preyed fish into pieces with a scissors to get it out safely (Yak!!).