New Tank Setup
The tank already looks amazing; nice job setting it up. For a centerpiece fish, I personally prefer a pair of German blue rams. However, if you plan to add these, know that they arenít the easiest fish to keep alive and add them at least a few months after the tank is fully cycled. I wouldnít worry about them being to aggressive. If you are looking for a catfish-like fish I recommend a school of 3+ corydoras. They are sold with many different coloration and patterns. The concern that I have with adding mini-shark fish is that they are aggressive, so they need to be kept with larger fish. If you would like a school of fish, a group of 10-12 cardinal tetras are a great addition to any tank. Good luck with your tank!