I agree, I'd count them as 1 because they are clean little guys and really dont get very big. I've always done best when I had an odd number of them...no idea why lol
Instead of a centerpiece fish you might think about getting an otto or two at some point in the future for your cleanup crew? Probably not yet, wait until the tank is fully established and there's plenty of food for them.
You could also get some ghost shrimp...they're awesome but you need to get at least a mesh lid, or those fold in half glass ones...something. You will pretty much always have a fish escape no matter what at some point...you can only do what you can. I had hatchetfish (notorious jumpers) in my 46 for awhile and one by one they found the ONE hole in the back and flew out.
Instead of a centerpiece fish you might think about getting an otto or two at some point in the future for your cleanup crew? Probably not yet, wait until the tank is fully established and there's plenty of food for them.
You could also get some ghost shrimp...they're awesome but you need to get at least a mesh lid, or those fold in half glass ones...something. You will pretty much always have a fish escape no matter what at some point...you can only do what you can. I had hatchetfish (notorious jumpers) in my 46 for awhile and one by one they found the ONE hole in the back and flew out.