How to Identifying Super red strains?

Hi, I have been interested in super reds for a while, but I cannot tell the difference between Czech and german strains. I would like to know the difference to avoid people who are selling some czech strains as germans strains

Can anyone please help clarify for me what the differences are with pictures?

Lastly, can anyone identify the strain of the super red in the picture with the yellow background in the URL below?

http://www.angelsplus.com/FishBristlenoseRed.htm

I wound very much appreciate the information.

this will have to one for the members that have access to the super reds. Alas, we dont get them here in Aus