Anyone know about dwarf and super dwarf retics?

hey I want to get a dwarf male lavender albino retic or a normal super dwarf retic.... Can anyone give me a rough estimate of there sizes? I've been looking online and i've seen people say dwarfs can range from 8 to 16 feet, and too me that is a huge gap in size.... Also i've heard people say super dwarf retics aren't real????? So if anyone could shine some light on the size you would expect those to be please let me know thanks.... Also i know the locality of the subspecies makes a difference, which would be have a lavender albino dwarf? or do all of them?