Of Colors & Grading in CRS

[silane]

Well of course! I mean isn't that how it's done now anyway? Like most people will just say what their tank parameters are. But even then you may not be able to trust them if they are holding out on some secret? haha.. Like there is a common unspoken truth that breeders in Taiwan will mix the packing bag with their tank water and distilled water. This is to hide their actual TDS value of their tank.. One of my Taiwanese friends shared this secret with me, but.. I cannot be confident of its factual truth. All I can say is that I trust my friend.. hehe

Look at #8. Should I say that Jap was being honest.

[newlife]

Shrimp do look different in picture comparing looking at real eyes...
I'm in line learning and studying LCD & LCD display screen...Humans eyes has different tone in viewing of coloration... Red,Green,blue,white and black is the common ones...
Angle viewing might also affect the color...this apply to photo taking at different angle...

[Navanod]

I think no need to pursue pattern based CRS grading, just a matter of time, CRS will be only 1 grade. There is a sign of grade compression for CRS in overseas.


However, for PRL, there is need to have some form of guide. I am not sure how that can get everyone to agree on it, as there are too many factors to consider let say on white, its thickness, have crack and temperature of whiteness. What disturbing is, a shrimp appear on photo can be look different in a tank especially the factor, whiteness.

Ecalyte suggestion on color.pattern is a good base to implement the system.

I'll attempt to tackle the grading for white, its thickness, have crack and temperature of whiteness. Also, the legs, and even the antennae!

Germans are working on naming and grading guides international use, I am invited to go for a discussion in Germany. I am sure any form of guide or standard we formulate here will be useful or adopt for international use.

I'm thinking of retaining the existing pattern grading, no point reinventing the wheel. Instead, Eviltrain suggested sometime back to attach a symbol after the pattern grading to denote color grades.
SS++ or S-- for example

I am not saying do not do water conditioning. What I am saying is when a shrimp is graded, it should come with information of what it is kept in at that point in time. So that if we get 2 grades of shrimp in the same water parameters you can tell them apart.

Precisely! If we get 2 grades of shrimp in the same water parameters we must be able to tell them apart.

Well of course! I mean isn't that how it's done now anyway? Like most people will just say what their tank parameters are. But even then you may not be able to trust them if they are holding out on some secret? haha.. Like there is a common unspoken truth that breeders in Taiwan will mix the packing bag with their tank water and distilled water. This is to hide their actual TDS value of their tank.. One of my Taiwanese friends shared this secret with me, but.. I cannot be confident of its factual truth. All I can say is that I trust my friend.. hehe

It is beyond the scope of this discussion and beyond our powers to deal with secretive breeders in this case. What we're trying to deal with, are breeders who make use of the lack of a clear grading system to market their shrimps at a higher grade.

[gryphon]

In my opinion, there is pattern, color and whiteness.
We can grade like diamonds which breaks down the many categeories of importance. E.g. 3 'P's
Pattern: Flowerhead, crownhead, mosura, Hino, tigertooth etc
Purity (thickness of white): A-E
Pigmentation (Color):1-5

Ecylate example could be graded as: Hino A1

[cheetf]

Someone showed me a draft of his very-evil local grading system

C - Cannot make it
B - Better a bit
A - Ace
S - Soild
SS - Solid shrimp
SSS - Super solid shrimp

but I feel it sould be S - solid SS - sibei solid SSS super sibei solid

[eviltrain]

Haha. Looks so familiar~~~

Send from my GT-P1000 (Overcome 7 Series v4.0.0)

[cheetf]

Maybe because it's your draft? Hahahha

[cheetf]

In my opinion, there is pattern, color and whiteness.
We can grade like diamonds which breaks down the many categeories of importance. E.g. 3 'P's
Pattern: Flowerhead, crownhead, mosura, Hino, tigertooth etc
Purity (thickness of white): A-E
Pigmentation (Color):1-5

Ecylate example could be graded as: Hino A1

From my screen it looks like Hino A2 because the white is a bit yellowish

[Navanod]

Looks like we already have a system going here! Haha!!

[avex30]

Haha. Looks so familiar~~~

Send from my GT-P1000 (Overcome 7 Series v4.0.0)

You never buy copyright hahaha

[eviltrain]

no need copyright la. i always share one

[Navanod]

In my opinion, there is pattern, color and whiteness.
We can grade like diamonds which breaks down the many categeories of importance. E.g. 3 'P's
Pattern: Flowerhead, crownhead, mosura, Hino, tigertooth etc
Purity (thickness of white): A-E
Pigmentation (Color):1-5

Ecylate example could be graded as: Hino A1

IMHO, color grading should take into account both white and pigments. Trying to separately assess them is quite difficult and introduces one more parameter that will make it confusing to compare.
Further, poor white normally impacts pigments and vice versa. I'm going to leave the pattern grading alone for the purpose of this thread. People can choose to call their shrimp's pattern by name or by letter grading or even the german's K ratings

[gryphon]

IMHO, color grading should take into account both white and pigments. Trying to separately assess them is quite difficult and introduces one more parameter that will make it confusing to compare.
Further, poor white normally impacts pigments and vice versa. I'm going to leave the pattern grading alone for the purpose of this thread. People can choose to call their shrimp's pattern by name or by letter grading or even the german's K ratings

Cos I come across shrimps with very nice whites but the red is like maroon or brown

[Navanod]

Ok folks, I've shamelessly gathered a whole bunch of photos from the net and will attempt to use them as example for grading. I do not claim ownership of any of these pictures and the owners may contact me to remove them if they have an issue. Note that I will also not do any editing to these pictures, any watermarks or white balance will be entirely left as it is.

Firstly, a picture of the anatomy so we are all on the same page when talking about body parts


I shall start with the top grade, best of the best color grade. Forgive me for being arbitrary at this point in assigning a simple "Grade 1" to this grade.
This grade is possibly almost impossible to attain and almost all my examples are from Yuken of Taiwan. White balance or poor resolution may account for why they looked so perfect in these pictures, but please assume that they're real for the purpose of this discussion.





Grade 1 characteristics:
- Fully colored, without any cracks or gaps, including antennule, rostrum, maxillipeds & pereopods. Pleopods colors are a plus but not critical. Slight translucency at the tip of antennule, maxillipeds or pereopods can be tolerated.
- Rostrum, carapace, abdomen and tail must be solid colored and opaque enough to hide the saddle, guts and any eggs.
- Any pigmented patterns must be clear and well defined from the white, without any spillovers or "fade in fade out" effects.
- Any "yellowing" or "browning" of more than 10% of the white is considered spillover of red and black pigments and will fail grade 1.
- Overly transparent pigments of red or black will also fail this grade.

I don't think one can find any faults with the colors on this grade except at the tip of the extremities. Any comments and views are welcomed

[eviltrain]

how about point systems? as in more points the higher colour grade?

then with this "points" we add to existing pattern grading system

example the shrimp shown



will be a (maxpoint)SS HINO

[Navanod]

how about point systems? as in more points the higher colour grade?

then with this "points" we add to existing pattern grading system

example the shrimp shown



will be a (maxpoint)SS HINO

Intriguing perspective bro.

Assuming a max of 10 points:

Peripheral colors:
Full colored legs/pereopods - 1pt
Full colored antennule - 1pt
Full colored maxillipeds - 1pt
Any translucency or half colored in the above will score 1/2 points.

Definition of colors:
Clearly defined red/black pigments against the white - 2 pts
Slight "overspill" from pigmented areas - 1 pt

Purity of white areas:
90-100% pure bright white - 2 pts
Only slight tint of yellow/brown - 1 pt

Coverage of body (Rostrum, carapace, abdomen and tail):
100% no cracks and gap, opaque and solid colors - 2 pts
No obvious cracks and gap, not opaque - 1 pts

Intensity of pigmented colored (red/black):
Solid red or black colors (not translucent, orange or brown) - 1 pt

I cooked this up entirely within 15 minutes so it's probably rubbish. Just to get a feel of how this grading will be like. Any comments?

[Navanod]

After some thoughts, this color system is difficult to "balance". I foresee some ugly shrimps actually scoring rather decently...hahaha!
The progressive nature of how a shrimp's color improves may be a double edged blade. What do I mean?
For example, most shrimps will not have colored peripherals unless their bodies are already nice and solid. So that's good, we'll likely not good a high point shrimp with fully colored legs and claws, but horrible body colors.
But color purity, definitions and intensity are all interlinked. So we may get a grading system where we don't see a bell curve but only high end and low end shrimps

[eviltrain]

hehe, lets put the system into test


from http://www.mr-krabs.de/blog/angebote/3257_3257

[Navanod]

hehe, lets put the system into test


from http://www.mr-krabs.de/blog/angebote/3257_3257

Peripheral colors: 0.5pt for antennule
Full colored legs/pereopods - 1pt
Full colored antennule - 1pt
Full colored maxillipeds - 1pt
Any translucency or half colored in the above will score 1/2 points.

Definition of colors: 0pt, serious overspill
Clearly defined red/black pigments against the white - 2 pts
Slight "overspill" from pigmented areas - 1 pt

Purity of white areas: 0 pt, what little white is obviously tinted
90-100% pure bright white - 2 pts
Only slight tint of yellow/brown - 1 pt

Coverage of body (Rostrum, carapace, abdomen and tail): 0 pt, plenty of cracks, even the rostrum is totally colorless
100% no cracks and gap, opaque and solid colors - 2 pts
No obvious cracks and gap, not opaque - 1 pts

Intensity of pigmented colored (red/black): 1 pt, the red is solid enough for me
Solid red or black colors (not translucent, orange or brown) - 1 pt

Total point: 1.5/10

Perhaps, we should not define white & red/black when assessing non-CRS/BDS?
Rather, use "primary" & "secondary" colors?

[xconnect.]

The point system too chin for me already I prefer the hino a1 grading system