Hi jazzx101, I agree with Juile and Eelzor that you need some more zebras to make a small school. As far as stocking goes it all depends on your tank size. Dont forget the one inch of fish per gallon guideline (when fully grown). Barbs are ok with danios but they are schooling fish also so you would need at least 6 of them. Cherry barbs are smaller and behave differently to tigers, tinfoils etc (not so aggressive) Platys, swordtails, mollys, gouramis, corys, plecos are all compatible with danios The best way is to try to get fish that will stay in different ares of your aquarium. IE: danios mostly like to be near the surface. Corys mostly like the bottom. Plecos mostly like the glass and wood. Gouramis will go everywhere. Platys like the surface but will roam also.