Hey guys I'm thinking of doing a solo wolf fish tank, the specific types available to me would be a red, purple, or gold. i have really only herd of the red and purple. Purple being from Peru correct? Do these monsters have different traits? i have not been able to find much info on the Gold Wolf though. Have any of you kept these monsters? any info or opinions would be great. I like the fact the red stays at a very manageable size. Thanks