Hey guys- I just finished transitioning my 20 gal from gravel to sand. Now I get to decide what type of fish to put in it. I have plenty of time to decide because I'll be going on vacation at the end of this month and I don't want to add any fish yet with the possibility of getting involved in a nasty cycle while I have to go on vacation. So I'll probably start putting fish in in about 3 weeks. I've been trying to decide on what fish to put in. I'm open to anything that will work in a 20 gallon. My only request is that they are compatible with julii corydoras because those little fellas will definitely be in my tank. That's actually why I switched it to sand. But I do need other fish so the tank can establish before I put my cories in. Suggestions would be great! (I've been thinking about neon tetras, cherry barbs or guppies or endlers, julii corydoras, and a golden german blue ram. opinions on these would also be greatly appreciated.) Thanks! I'm having trouble deciding with all my possibilities and would LOVE some recommendations.