I recently bought a 13 gallon Aqueon tank. After having the water tested, I introduced 2 small male guppies and 2 ghost shrimp. I was wondering what other fish would thrive in this tank. It is quite tall, so I have been looking at dwarf gouramis, as they are somewhat tall and skinny. Would this be okay in my tank without upgrading to a larger one down the line? And as far as decor goes, do fish prefer many plants taking up space, or a scarcely planted tank? Thanks! I forgot to mention, I like dwarf gouramis as they are the centerpiece of the tank. I was also considering maybe 1 betta?