I have a 180 gallon and i have two severums, 1 datnoids, one royal pleco, and one giraffe nose catfisj. I'm wanting to add a puffer and I'm not sure what kind. I'm thinking of either a south american puffer or congo. Ive ready differe.t information on the congo so I'm a little confused. What do you guys think? Congo or south american puffer?