The plants will not regrow if you cut below the lowest nodes that are where the cotyledons (seed leaves) were. Are there any nodes left below the jagged portion?
I find C. chinense Limón unique among the other C. chinense in my garden in terms of growth habit and the taste of the fruit. I'll throw in another good word for Bahamian Goat Pepper too.
915river has Bolivian Rainbow listed among the Ornamental section on his rainbowchiliseeds.com site...
Zooming in on the flower petals I can see what appears to be the characteristic yellow spots on the petals of a plant belonging to the C. baccatum species. The leaves and fruit also resemble those on the C. baccatum varieties I have grown.
Save the seed from some the fruit of your own plant and give it a go side by side the seed you purchase. The plant appears to be putting out fruit that's pretty consistent shape wise judging from your photos.
The photo they used in the listing is one they ripped off from Peppermania's photo gallery. This post from 2010 identifies the photo as being from Peppermania's gallery.
One of the attractive aspects of the C. chinense species is there is some variability in the flavour between the varieties...
By Scotch Bonnet Jamaican Yellow are you referring to the mushroom shaped fruit in the photo you posted previously?
The mushroom shaped fruit in the bowl appear to be C.annuum Jamaican Mushroom. The difference in flavour that you noticed is also a give away.
Do you have a photo of the plant?
I haven't personally used Magnesium chloride due to lack of availability. What I have read suggests more care needs to be taken when foliar feeding with chlorides due to the toxicity level of it on plants being lower.
I have foliar feed plants with a mixture of Magnesium nitrate and Calcium...
The seedling in the photo does appear yellowish.
How much light does it see and what is the grow medium?
Edit:
I should add that in the case of a few seedlings that I started in depleted mix I began feeding them at half strength once a week throughout winter from an early stage.
The issue jlacosta saw was one likely one of Calcium lock out caused by the overdose of sulphate (from Magnesium sulphate).
If your leaves are a solid green and bubbly in texture as the in the photo of jlacosta's plant then you should look into the issue of Calcium deficiency. Sometimes...
The issue of an overdose of Epsom Salt via foliar feeding came up in the topic Epsom Salt Burn has been discussed previously. Both of the growers that tried the quoted application rate saw the result of fertiliser overdose. Using that concentration is not recommended.
Added one img tag for you above.
Have you considered picking one of the Chocolate Habanero seedlings out and supplying it with more light rather than less to see how it responds?
The stretching out and the paleness to my eye is a sign of a lighting issue for those particular sprouts.
Which particular seed raising mixes did you try?
Did the seed raising mixes you bought specify that they contain water crystals on the bag?
This season for lack of better available I ended up trying Osmocote Professional Seed And Cutting Potting Mix. My Bahamian Goat Pepper starts did develop...
I don't recall the additional requirement applying to all Capsicum spp. There's a portion of Condition C19752 quoted in JungleRain's post back on 18 January 2013. It matches the condition that essentially applied to annuum, frutescens and chinense species of Capsicum.
The list of species not...
The date they insert into the document is the date that it was accessed and not the date of the initial publication.
JungleRain mentioned it back in early 2013:
There's a PDF that falls within the time period JungleRain mentioned on a German site...
There is the Vietnamese Black Dragon among a group of grey fuzzy chillies that your plant bares a resemblance to:
Smokemaster is the go to guy on grey fuzzy C.annuum:
Do you have a photo that shows the entire plant?
I see you spotted an answer that was posted earlier:
Whether you end up with a C. baccatum or C. chinense depends on the source.
There's an Aji Colorado on ChilePlants.com that is described as a C. baccatum. Most of the references I see to a red Aji Colorado list it as a C. baccatum.
Capsicum annuum and Capsicum chinense (plus any combination thereof) are mentioned in a document on Capsicum spp requiring testing.
Capsicum baccatum is still on a list of Capsicum spp (not requiring testing) that includes:Capsicum baccatum
Capsicum galapagoense
Capsicum praetermissum
Capsicum...