Hey,
Well as Jordan mentioned, there is a narrow probability for an animal to get redder if there is very little reddish coloration in the animal to begin with. The redder animals or Bloods, tend to get redder if they all ready have a predetermined amount of red coloration in it with higher contrast. If an animal starts out with a pretty fair amount of red or orange in it, then there is a higher probability that it will develop the more typical red or orange back ground associated with Bloods as adults. However, if there is little to no red or orange in the background color, that color intensity will not develop or morph into something outstanding as the animal matures.
Most animals that you see on the market are not as red as the ones you would typically see hailing from Mainland Malaysia or Bangka or any of the other surrounding Insular populations from the Malacca straits. There are exceptions though, and some of the redder animals are bred from the more redder stock imported from Northern Sumatra.
-Angel
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Discovered and defeated of your prey, You skulked behind the fence, and sneaked away. --Dryden.