I also found this info from the following site, fwiw.
http://www.petresources.net/fish/article/sae.html
And a Picture too.
Siamese Algae Eater (SAE)
* Two forward facing whiskers
* Black lateral stripe, going into tail
* Clear fins with no white, or yellow markings
* No pronounced suction mouth
* Hovers in place while cleaning leaves, schools with like kind
False SAE
* No Visible whiskers
* Black lateral stripe, not continuing into tail
* Gold stripe above lateral black stripe
* Yellow-red fins, not tipped in white
* Sucker mouth when at rest
* Very spastic in nature, very rarely still or hovering, semi-aggressive to like kind
Flying Fox
* 2 forward whiskers, 2 others
* Black lateral stripe into tail
* Gold stripe above lateral black stripe
* Yellow-red fins, tipped in white over 2 inches
* No sucker mouth
* Semi-aggressive with everything, not a schooler when older
Chinese Algae Eater (CAE)
* no whiskers, sucker mouth
* brown pattern or line on side, mimicing lateral stripe
* Yellow-olive green body color
* Fins marked by spots, stripes
* Sucker mouth
* Semi-aggressive, very energetic