http://mobile.walmart.com/ip/Duck-35-Rope-Caulk/16879752 Put that around the top of container it will seal it just needs to be replaced after ever harvest
Still trying to get that down the last round they were around 2ft tall and around 12" maybe a little more radius but they are kind of crowded for my space my ideal would be 16 tall and around >10" radius I think would be perfect
My last grow I found nanners at around week 6 they took 9 to finish out of the 16 ounce I have had only reports of three seeds being found , you can try to pick them off as I did but let them finish probly won't be as bad as you think