> How do I know if I still have roaches?

How do I know if I still have roaches?

Posted at: 2014-09-26 
It's possible

Ok 1 year ago my sister in law had roaches. A couple times she would visit my house and I would find a roach after she left. I immediately threw down borax every where until I could get roach spray, and I haven't seen any since.

Fast Forward till last tuesday. I just brought in fish tanks that I bought second hand. When I got home I noticed that they smelled bad, but I cleaned them up. Well tuesday I found a roach on the filter inside the tank!! So yeah borax EVERYWHERE and Re-sprayed that spray ect.

My question is is there any way to have roaches for a year and not notice them? If it is how can I tell if I got rid of them. I am thinking and hoping I brought them in with the tanks.

I keep a pretty tidy house, not perfect as I have kids. But I don't want roaches!