When 'Clean' Is Too Clean: Why Near-Zero Nitrate Can Backfire

It was an honor to judge the 2023 North America Shrimp Contest in North Carolina. Despite the exhausting journey from Singapore, meeting fellow breeders and judges made it worthwhile. The contest showcased fewer tanks but higher quality shrimp. Here’s a guide for breeding, grading, and selecting shrimp for competitions.

Intro

It is truly an honor to be part of the esteemed judging committee for the North America Shrimp Contest 2023, held in North Carolina. After a long and grueling 18-hour direct flight from Singapore to Newark, followed by a brief 3-hour layover and a final 2-hour flight to North Carolina, the journey was an exhausting but worthwhile experience. I eagerly anticipated meeting the fellow judges, panels, and especially the breeders I had only known through online interactions.
This year’s contest had fewer tanks, but the quality of the entries was exceptional. While this blog post does not focus solely on the contest itself, I aim to provide valuable insights on what makes a shrimp competition-grade and the key factors that judges evaluate when assessing shrimp for such prestigious events.
If you are considering entering a shrimp competition, this guide will help you understand the critical aspects of breeding, grading, and selecting your shrimp for contest success.

Understanding Competition-Grade Shrimp: What Judges Look For

A shrimp’s success in a competition depends on several factors that contribute to its overall appeal and quality. These include its color, size, pattern, overall appearance, and health. I will delve into each of these factors and provide key tips on how to breed shrimp that meet competition standards.

Color: The Foundation of Quality Shrimp

One of the first aspects judges look for when grading shrimp is the intensity and quality of their color. For example, Black Ninja shrimp, which are quite translucent by nature, need to exhibit a solid, deep black coloration to stand out. However, achieving a rich, uniform black color can be a long and complex process. Shrimps often show signs of fading, such as brownish or transparent areas, as they age. Therefore, selecting high-quality shrimp stock from the start is crucial to saving years of selective breeding.

In competitions, color intensity on different areas such as the legs, body, and head is evaluated. For example, we award additional points for shrimp with consistent and vibrant colors throughout. A well-developed shrimp with excellent pigmentation will always score higher in this category.

Patterns and Size: Perfection in Form

Pattern and size are also crucial when judging shrimp. For instance, Black Ninja shrimp are recognized for their distinct white mask pattern on the head. Judges will look for uniformity in this pattern across the shrimp, which is an indication of the breeder’s success in stabilizing this trait. Size is another important factor, with larger shrimp often receiving higher marks if they maintain consistent patterns and color.

In terms of breeding, achieving consistent patterns and size often takes several generations of selective breeding. For example, when breeding from a 4-banded PBL shrimp to a Black Ninja, it’s essential to select only the best specimens. This requires choosing the shrimp with the least amount of transparency and the most consistent markings. The further you go down the breeding line, the more stringent the selection process becomes. Only the best shrimp are kept for future breeding.

Overall Appearance: Stability and Homogeneity

When judging, the overall appearance of the shrimp is a key factor. This includes examining the uniformity of size, pattern, and form, which suggests a stable and well-maintained breeding line. Shrimp that exhibit strong homogeneity are often seen as a mark of excellence in selective breeding.

Moreover, the difficulty of breeding these shrimp plays a significant role in scoring. Shrimp that are more challenging to breed—such as the Black Ninja, which requires several steps of selective breeding from the original PBL to achieve full black coloration—often earn higher scores due to the innovation and expertise involved in their creation.

Health and Activity: Signs of Strong Genetics

A shrimp’s health and activity levels are vital indicators of its overall quality. Judges closely observe the head-to-body ratio and ensure it aligns with the standard 1:3 ratio. Active and healthy shrimp are preferred, as they indicate strong genetics and proper care.

Shrimp that are stressed or show signs of deformity are typically penalized. For instance, stress can result in color fading, especially in red shrimp, or even shrinkage in size. A healthy, vibrant shrimp is a clear sign of excellent breeding practices.

Breeding for Competition: Tips and Best Practices

Breeding for a competition goes beyond basic selective breeding—it requires focus on vigor and strength. Vigor in shrimp means breeding them to be resilient and adaptable to a range of conditions, without over-pampering them. Shrimps that have been bred for vigor are more likely to thrive in different tank environments, especially since competition tanks often differ from the shrimp’s original home tank in terms of water parameters.

By maintaining stable water conditions—rather than chasing specific parameters like pH or TDS—breeders can help shrimp adapt and perform well under the variable conditions they’ll face in competition. Shrimps generally thrive in a GH range of 2-6, and it is far more beneficial to maintain a stable environment than to constantly adjust water parameters.

Preparing Shrimp for Shipping and Competition

When preparing shrimp for competition, it is crucial to ensure they are in optimal condition. This includes a process known as de-veining, where shrimp are not fed for a day or two before being packed. This helps maintain their health and ensures that they look their best when arriving at the competition.

Packaging is another critical factor. High-quality bags, such as breather bags or poly bags, should be used to ensure the shrimp can survive the shipping process. Shrimp should be carefully packed with ice packs to prevent heat damage, especially if shipping from warmer climates like Singapore.

What Happens if You Don’t Prepare Properly?

If proper care isn’t taken during preparation, shrimp can suffer stress, deformities, or even die before they are judged. For example, red shrimp often experience color fading during shipping, which can affect their appearance and score. To mitigate this, it’s important to breed shrimp with intense pigmentation, as darker shades of red will maintain their color better under stress than lighter shades.

Meeting Passionate Breeders

One of the highlights of events like the North America Shrimp Contest is the opportunity to meet new breeders and enthusiasts from around the world. It’s always inspiring to connect with people who share the same passion for shrimp breeding. Despite geographical distances, it’s clear that the love for shrimp transcends borders.

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