This type of severum has many names: Red Spotted, Super Red Severum, Fire Red Severeum, Gold Severum..etc..
I bought 2 (possible males) from a pet store at 2-3inches each. A few weeks ago, I found 2 more in a gold severum tank. I bought two less red fish because they looked like females. Almost all....or so it seems, red spotted severums are males. Females are really really really hard to come by. I bought two less red fish because they looked liek females and since their brothers have a lot of red on them, I assume these females will carry the red gene in them.
I dont know the history of these guys, but I keep reading online that super red severums are line bred from gold svereums hence, there are more males per batch than females.