Let's see, it has to be a fish I have in a tank I have. I would have to go with my 5 copadichromis trewavasae in my 100. They aren't monsters, but they are just starting to color up and I love their pattern. Either that or my indo dat and my 200. He has a ton of personality and a great pattern for an indo. I would have said my RTC or silver aro, but I want (and will need) to get them something bigger than the 200 that they are currently in. This is a tough question that should never have to be answered.
Heres what my copadichromis males are starting to look like:

Heres what my copadichromis males are starting to look like:
