I would not trust a breeder that says he put all his hets into one tank because as a breeder, you know that other breeders want to know what they have. Also Hets are worth alot more money than normals and you would not want to lose out on possible 1000s of dollars! A Clown Het Fenale is worth about $1000 alone! He probaly told you that to sell his normals fast! Normals are hard to sell! If you breed her to a Spider and she is Het for something than the babies would be 50% possible Het so you still may not hit it! I would breed her Spider son back to her so even if you do not hit the Het, you will at least get some more Spiders out of it! Good luck!