sorry to ask so many questions, but what did you do to cycle your tank? also, what type of catfish? if you have a mix of female and male guppies, be prepared for a lot of babies for a long time. one more thing; kissing gouramis can get pretty big, and a general rule with gouramis are that they can become aggressive towards other gouramis. you may want to rethink some of the fish you have now to avoid any future problems.