sometimes you need to investigate further the background of the journal beside ISI and scopus indexed. this is explained much details here :http://scholarlyoa.com

Although I'm not totally agree on how Beall conducted his critical analysis, he has a valid point there. Sometimes it may be better to publish your work in journal without any citation index rather than to submit your work to journal without any proper peer-review. But it is you to make the decision, I heard few different opinions about this