Alex Niño's angular, psychedelic style was probably the most unique of the Philippine comic artist invasion of the 1970s. He could take even the most routine script and turn it into something interesting. As I recall he had some trouble with editors over his style when he stretched his imagination too far, and made the stories difficult to decipher.
There's no problem with that here. These stories are written by Jack Oleck. "Fish Story" is from Secrets of the Haunted House #1 from '74, and "The Evil Power" is from Weird Mystery Tales #9, 1975.
Grantbridge Street has posted an Oleck/Niño DC story here.