Help me with my hydroponics problem. Please!
The directions were great. Except, now that I got my air pump going and everything else, there is a smell coming from it. It smells like garbage. Also, when the bubbles come up to the surface there's a bunch of bubbles left at the surface...it looks like a bubble bath. The first time this happen with the smell I just got another air stone. So, now I have two in the container. I emptied the old water and solution, cleaned the container and add more water with fertilizer. This worked great, but then two weeks later it was time for me to put fresh water again and now it's doing the same thing with the garbage smell. Please give me some ideas on how to get rid of this.