I have one of these and when I bought it, it was titled simply 'Albino Pleco'.
Sorry I couldn't be of more help but enjoy the fish! I've had mine over a year and he hasn't grown that fast. Probably gone for 2.5 inches in overall length to 5.0 inches...and the growth rate has been slowing.
If yours is anything like mine - they're kind of boring outside of the dusk hours. Otherwise they hide most of the time.
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46G bowfront: 1 large snakeskin gourami, 1 blue gourami, 2 pearl gouramis, 4 yellow honey gouramis, 12 black neon tetras, 1 albino pleco. All gourami's are female as far as I know. 
Lighting: 78 Watts (1.7 wpg) T5HO
Plants: Java Moss, Marsilea Minutia, Dwarf Sagittaria and a lot of fakes.
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