From a popular website:
"While in the kit, the crawlers change colour after ingesting an environmentally friendly colouring agent. They'll remain a fluorescent green for several days after being removed, making them easier to see underwater."
I have made my own nitro worms, and it works by injestion. If it is legal, it presumably does not kill every fish that gets away with a worm, so...
Has anyone tried this on their fish?
Just curious.
/Kris
"While in the kit, the crawlers change colour after ingesting an environmentally friendly colouring agent. They'll remain a fluorescent green for several days after being removed, making them easier to see underwater."
I have made my own nitro worms, and it works by injestion. If it is legal, it presumably does not kill every fish that gets away with a worm, so...
Has anyone tried this on their fish?
Just curious.

/Kris