Cull shrimp are neocaridinas that didn't quite meet the grading standards for a specific colour variety. They come in a random mix of colours and patterns, and you can expect some transparency along the body - this is completely normal and healthy. The photo shown is just a sample; every batch is different, and that's part of the fun. If you're looking for an affordable way to start a colony, stock a cleanup crew for a planted tank, or simply enjoy keeping shrimp without worrying about colour grades, culls are an excellent choice. They're just as hardy, active, and easy to breed as their graded siblings.