I only see 2 pics here vs. 3 in the other thread (but the pics are the same). This one doesn't have the sailfin
1) Looks a Pterygoplichthys pardalis (common- L021)
2) Looks a Pterygoplichthys disjunctivus (common- No L #)
They are nearly the same with little difference. They are hard to sex but they won't breed for you unless you have a mud pond.