2 ms·Madagascar hissing cockroaches are probably in the 30-40 sizeby Avshalom 2y agoMadagascar hissing cockroaches are probably in the 30-40 sizesoperj 2y ago30-40mm?Cerium 2y agoShrimp are sold by the count per pound. 30/40 is a common size. https://fultonfishmarket.com/blogs/articles/shrimp-sizing https://fultonfishmarket.com/blogs/articles/shrimp-sizing