[LordGareth]

Eh, I've seen them larger, almost two feet is the largest I've seen. It is indeed a "pleco", as its referred to because of its former scientific name. They are establisted is a few of our waterways here in Texas. They are a very hardy family of fish for the most part. And though saltwater or even brackish water is not their native habitat, it is possible for them to live and even thrive in such conditions. For more info on them, do a search on "Hypostomus plecostomus".

Juan