Pond Boss Forums INTRO Questions & Observations Spillway observations?

So, you do know that all triploid are individually tested (blood test) and each one is certified sterile? Then the US F&W service randomally tests fish from each group. If one fish is found to br not triploid, then the whole group fails, and can't be certified triploid until all the fish in that group are re-tested. Many states require only certified triploid GC be stocked - no chance of them spawning and reproducing.

That's both sexes, not just females that are certified.

Diploid can spawn and are not sterile, triploid are sterile.