Difficulty of CRS grades - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 03-10-2013, 06:00 AM Thread Starter
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Difficulty of CRS grades

I know that CRS are very specific when it comes to water parameters, and that the higher the grade the more sensitive they are. How much more difficult are SSS grade versus S grade? What kind of extra care is involved?
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post #2 of 14 (permalink) Old 03-10-2013, 06:31 AM
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I wouldn't say S grade is that "much" harder than SSS grade, as long as you have stable parameters, your fine. By extra care, RO water helps a lot, but it's not "required", all CRS would do better with RO/ ideal parameters.

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post #3 of 14 (permalink) Old 03-10-2013, 06:46 AM
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Difficulty of CRS grades

Maintaining stable parameters, clean water is the key.
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post #4 of 14 (permalink) Old 03-10-2013, 07:05 AM
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Difficulty of CRS grades

The two previous posters really touched on a big issue. Clean tank, stable parameters.

A well known breeder here says there is no difference between the average S-SSS grade shrimp. Most S grades can spit out SSS and anything inbetween.

There is a difference between PRL lines and the average line, however.

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post #5 of 14 (permalink) Old 03-10-2013, 07:46 AM
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There's no difference between grades.

It used to be there was a difference, but not anymore, crs are so hardy now.
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post #6 of 14 (permalink) Old 03-10-2013, 06:28 PM
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Grade doesn't make a difference in 90% of the bee shrimps, the difference comes from the strain. Some strains are harder to breed especially the high quality pure line because they way the breeders use for selected breeding.

Selected breeding: Most people put all the breeding shrimps in a tank, and cull the ones they don't like and keep the tank going (let's call it method A). Some top Asian breeders do it differently. They take the best from the F1 and put them in a different tank to breed them, then again in F2 (let's call it method B). They don't back cross unless there's issue in the Fn, because doing so is stepping backward. You may think the result should be the same but it's not. Method B gets the blood pure for the characteristics intended (leg coverage, white thickness, ... etc), and Fn is always better than F(n-1) genetically speaking. But method B not only requires more tanks, also is slower, and the resulting shrimps breed much slower, but you are sure the shrimps are going toward your goal. These shrimps would be harder to keep/breed, grow slower, no matter the "grades".

And because these breeders don't want others to get, say, the culls in F4 or F5 from method B and get a short cut, they mix them with offspring from method A so their result can't be "stolen".

PS: shrimps from method B normally cost more than $x00 each, so don't worry too much you'd get them by accident ;-)

Last edited by randyl; 03-10-2013 at 06:29 PM. Reason: PS
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post #7 of 14 (permalink) Old 03-12-2013, 10:36 PM
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I used to do drip acclimations for everything, when moving some shrimps to different tanks, water changes, some times these drip acclimations took 4 hrs or more.

Now if I move a shrimp, even from amazonia to eco complete or vice versa, I just net them and dump them in.

And they all do just fine. I've stopped babying them.
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post #8 of 14 (permalink) Old 03-12-2013, 11:21 PM
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the difficulty between the S and SSS can be measured by the difficulty to take the cash out of your wallet as one hurts more than the other

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post #9 of 14 (permalink) Old 03-13-2013, 04:58 AM
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Quote:
Originally Posted by acitydweller View Post
the difficulty between the S and SSS can be measured by the difficulty to take the cash out of your wallet as one hurts more than the other
I agreed this. True
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post #10 of 14 (permalink) Old 03-13-2013, 05:46 AM
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post #11 of 14 (permalink) Old 03-13-2013, 02:48 PM
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Quote:
Originally Posted by acitydweller View Post
the difficulty between the s and sss can be measured by the difficulty to take the cash out of your wallet as one hurts more than the other
rotflmao!!!!!!!!

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post #12 of 14 (permalink) Old 03-13-2013, 03:05 PM
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Honestly I have to agree on stable paramaters being key.
I have CRS/CBS/Yellow/PFR/Red Rilli/pumpkins i almost swear the CRS/CBS are one of the hardier one. in shipping an keeping i have not lost any of them and had at least one of the others bite the dust in one way or another
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post #13 of 14 (permalink) Old 03-13-2013, 03:13 PM
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Quote:
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Honestly I have to agree on stable paramaters being key.
I have CRS/CBS/Yellow/PFR/Red Rilli/pumpkins i almost swear the CRS/CBS are one of the hardier one. in shipping an keeping i have not lost any of them and had at least one of the others bite the dust in one way or another
I seem to have the crystal touch over neo's too. lol.

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post #14 of 14 (permalink) Old 03-13-2013, 03:15 PM
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I seem to have the crystal touch over neo's too. lol.
All of my neos other than my PFR and red rili became angel food once I got bored with the,
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