Zhang Yang had no idea about saponin, but he was quite familiar with tea seed residue.
Tea seed residue is the leftover after tea seeds are pressed for oil. Many freshwater aquaculture bosses like to use it to clear the fish in their ponds. When sprinkled into the pond in the right proportions, it doesn't take long for all the small fish to die.
Before the rise of synthetic aquaculture drugs, this was a very common and cost-effective solution for clearing small fish.
All animals have the instinct to seek benefits and avoid harm. Using a bait with such toxic substances to fish in a competition would be ridiculous.
"Alright, I got it! Just keep this to yourself, don't let any third party know!" Zhang Yang nodded seriously, giving a firm reminder.
"Don't worry, I handled it myself, no one else was involved! What's going on? Are you in trouble?" Yu Dong asked with concern.
