/diy/ - Do It Yourself

Go to local hardware store and buy a jug of this shit (or the equivalent from whatever other brand the store carries)
Spray the perimeter of every room at the baseboard (where the walls meet the floor)
Spray all door jambs and thresholds
Spray the perimeter of every window
Spray it at any other openings where ants can come in to the place (like pipe openings in the back of a base cabinet, wall access panels, etc.)
Repeat 2 to 3 times a year and you will never see another ant

I think I fucked up. I went out by our raised fish pond ( 4x4 2" ), and there roaches fucking everywhere. I got the spray, and hit the nearby walls, and around the base of the raised pond. I don't think I got any IN the pond, but after I went in I realized that even a drop can probably kill the fish.

Did I totally fuck up? If I did, how soon till fish die. is it like... basically instant? an hour? 2 days?