Here are some picts of my "chocolate pleco"

[silver]

 

[myenigmaself]

I did a little research and it seems like everybody is right! The Pleco of mention is actually a "Chocolate Albino Pleco." I found one person who had his grow to 7" and he thought that the fish was done growing, but he had it in a 10 gallon in poor conditions so who knows how big they can really get. There wasn't any other mention of people who let their chocolate albinos grow to full maturity. Looks like I might need to get a bigger tank in the future