Purelines A grades in comparison to the typical pattern grades are rated by color intensity and pattern which demand the premium.
With that said, one would be hard pressed to get any near accuracy as many hobbyits are overly generous with their rating of their own stock. e.g. painted fire red shrimp that are often marketed as PFR which often have clearish shells of red tint but are a far cry from the opaque shells of the parents. There is an undeniable truth to the lineage of being Painted Fire red but lesser to the fact that they will ever rear offspring to near quality of their forefathers.
The same goes for the sales tactic that S or SS grade shrimp with SSS parents. A zombie shrimp apocalypse may have higher probability than S or SS grades having SSS grade offspring...
Its more likely that the original pattern grade shrimp was true to form until hobbyists started to heavily inbreed their colonies without factoring genetic diversity to strengthen the finer qualities of their stock, hence the dilution of coloring and patterning and an overall breakdown in the market over the past few years. The same trends are visibly evident in OEBT breeds.
what has come to pass isnt that the breeds are easier to keep but rather the hobby is saturated with shrimp specific products proven to make the hobby easier, which can also be observed in the Reef hobby as well.
perhaps a more practical approach, which has come to pass with honest hobbyists are being forthcoming with the quality of stock available for sale. if they are culls, there's no need to further clarify as the weakened coloring or attributes are applied. It should not lessen the value of these shrimps as there is a market on all levels of expertise today. Being an avid crs keeper for several years, i have tanks with high grades, and community tanks of lesser grades whom freely frolic with nano fish of all species and are viewed in a more natural setting which is both aesthetically pleasing to witness and a joy to have such diversity all in a single large tank. the truth is, a lesser "graded" crystal actually looks gorgeous when its peers aren't all the same and allowed to grow to maturity reaching full coloration, and size. shell thickness, length of antenna, and even their personality to a larger extent can be improved through the environment and diet so i encourage people to broaden their view of keeping and depreciate the emphasis on the grades alone. Having an open mind does do wonders.
"I am Groot", the faithful protector
Last edited by acitydweller; 03-22-2013 at 10:34 AM.
Reason: wake up