The video is of the current group for sale. They have grown to about medium size.
Medium Halfblack (Size: SD) This is a mix of regular halfblack and ghost halfblack. If you do not want a mix, please do not order. You cannot pick the mix and they will not be sold any other way out of this group.
The above video is of the "unturned", non-expressing halfblacks. Some are starting to show a bit of the pattern in their tails.
After 10 years of work on this wild-cross line, they are now "turning" very early and more than 90% of the spawn is getting the pattern. The "un-turned" ones do not have the pattern yet, but may still get it. They carry 2 genes for halfblack.
Halfblack All Halfblacks start out looking like wild-type silvers. The pattern develops under good conditions on most of the fish. They can "turn" almost overnight. You can save money by purchasing them before they develop the complete pattern. Even if they don't "turn", or only partially "turn", they are still genetically Halfblack and their offspring will be capable of developing the pattern.
Het.(heterozygous) Halfblacks are fish with only one Halfblack gene. This means they cannot turn halfblack (because halfblack is a recessive trait), but 25% of their F1 offspring will have the ability to express the pattern.
How We've Improved Them: Halfblack is recessive, and most people keep randomly breeding siblings, which weakens the strain. We've spent the last 5 years improving Halfblacks. We crossed them to some wild Peruvians and then worked for a few generations to get them expressing the pattern better. We ending up with a very vigorous line that is starting to express the pattern in a high percentage of their offspring.
"Unturned" Halfblack: We have some fish that do not express the pattern at the time we offer them for sale. Many will express it at a later date. We offer them at a lower price when they haven't already "turned".
Please carefully read the information at each of the following links so you understand the shipping choices and procedures.
How to prepare for your new fish are found in the text below. Please read this carefully. It is very important to fully understand this before we ship your fish.
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