I think "Red Spotted Green" is just Green Severum. What is the scientific name of Green Severum? I am getting mixed results on Google search.
Severum Facial Pattern Development
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I think "Red Spotted Green" is just Green Severum. What is the scientific name of Green Severum? I am getting mixed results on Google search.
Green severums in the hobby are basically a long standing, captive bred, genetically mixed bag, so they can vary in color, be heavily spotted, or have few to no spots. Some call them efasciatus or even severus. Heros severus is a geographically specific fish with specific characteristics, so common green severums are certainly not severus (though it wouldn't surprise me to see severus hybrids). What's currently known as efasciatus are widely distributed in the wild and can vary in different locations, but to me calling hobby severums 'efasciatus' is somewhat arbitrary. I suppose you have to call them something, but, for example, while some look like efasciatus, I've seen some resemble notatus. The so called 'red spotted green' severums I've seen basically look like nicely spotted greens to me, but who knows what their lineage is.
Anyway, that aside, I bred rotkeils, raised many, and most of mine easily got to 6 inches or more within a year from fry. It's been over 20 years since I had common green severums, but I'd expect 2-4 inches to take less than 6 months, more like 4 months on average.
Anyway, that aside, I bred rotkeils, raised many, and most of mine easily got to 6 inches or more within a year from fry. It's been over 20 years since I had common green severums, but I'd expect 2-4 inches to take less than 6 months, more like 4 months on average.
So I had a chat with the dealer and here is how it went.
I asked him if the Red Spotted Green Severum was just a Green Severum and for the Scientific Name.
His response was that they were different fishes, no response on scientific name.
Then I asked if the Red Spotted Green was Heros Efasciatus.
To which he responded, that I should get the Heros Rotkeil if I was looking for Heros Efasciatus.
As of this point, I can say is that the Red Spotted Green is not a Heros Efasciatus. They could be greens mixed with red spotted golds.
Since 'red spotted golds' are irregular when it comes for facial patterns, I should probably avoid the 'red spotted greens' as well, since I am looking for facial pattern differences in the males at 4".
Would it be safer if I just went with the regular Green Severum?
If the Green Severums are a mixed bag, can I still expect facial patterning in the males at 4"?
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Is the facial pattern difference between gender the only aspect of them you're interested in? Or do you have a prefernece on coloration, size etc? Couldn't you tell gender by venting instead?
Yeah, just the facial patterns so I can screen them out and do an all male tank.
I think I could vent them but doesnt that mean they have to spawn first? so if a pair spawns, then i can vent just the pair, i dont think i could vent the rest of them.
Also, the veterans here said that I should do it by facial patterns.
Green severum females don't normally get facial markings, same as rotkeils. I say 'normally' only because it might be possible to get a cross with a species that does-- but as mentioned by ryansmith (post #10), most female Heros do not. Don't know how much I'd trust the dealer for taxonomic information, with a few exceptions (like TUIC) most are not expert in that area. As for rotkeil, they may or may not turn out to be a form of efasciatus.
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