I don't know, but DB-100 sounds suspiciously like a product used as a surfactant in the crop dusting industry.
A friend used to use it, and would trick people into getting it on their hands. The real fun came when they tried to wash it off. It immediately became a thick, tenacious skin that got thicker and thicker the more they washed. It would absolutely make you fall down howling with laughter as they tried to wash it off.
Most surfactants in small amounts are fish friendly, but it it would warrant caution, if indeed DB-100 is a surfactant.
