hello every one i have a 12" jaguar cichlid and he will not stop taking the filter tube off and it is really annoying and i cant just reach my hand in it to grab it because he will destroy my hand and there is no way i can just do it really quickly i tried that once and it did not go well on my part so is there a way to stop him from doing that he has two marineland emperor 400 hang on back power filters.