Get some boric acid, often sold as a cheap powder for cockroaches. I've found it at Dollar stores, and in pest control sections of grocery stores.
The guy that sprays my house gave me a syringe of 6% boric acid with what looks like molasses to kill ants. I've also used the straight boric acid in the attic to kill carpenter ants - the big black tree ants that bore into wood. Not good for your house! Had a hard time gettign them with ant bait, but the boric acid, puffed into holes drilled in all walls and beams suspected of harboring colonies, did them in, haven't seen any for months.
The syringe works for the tiny sugar ants that appear when it is wet outside and someone leaves dishes at the kitchen sink. I used the boric acid powder in the shower, along the pipe going into the wall -- boric acid is not good in wet locations but I guess it worked well enough.
You can mix the boric acid with peanut butter, or use it dry, for cockroaches and ants. Pretty harmless to people and to fish I think, we add it to fish tank fertilizers to get the boron I believe -- but don't quote me on that! I do think that boric acid is used as an eye wash -- but don't quote me on that either! (two big martinis and I'm hopeless)
Do not use sprays!
The vast majority of bug sprays are neurotoxins and will do great damage to fish!
Last edited by anonapersona; 12-09-2004 at 12:13 PM.