So after about two weeks of a fishless cycle we finally added some zebra danios and the tiniest little sucker fish ever. We have had them for a week and really want to add a couple more fish as we also have our 33 gallon tank up and ready to go(we are cycling it for 2-3 weeks just to make sure everything is good) I want to add some more colorful fish but the petstore says we can't add different species(because of the different food they are on) what other kind of danios or the same species can we add into the tank. For the longest time i have wanted like some shrimp in a tank but i don't know if i can do that. We also have one danio(I call it Rio) that is chasing all the other ones away and it's getting alot chubbier. How can we keep it away from all the other fish so that they can eat and get healthy and fat too?