All I use are the Rubbermaid tubs....both for cloning and for growing. I never use a timer on either....just airstones and submersible pumps. They both run 24/7 and I have roots in 10 days with a 99% success rate. Your biggest challenge will be to find a clear plastic dome that covers the clones. You don't NEED one although your success rate will go way up if you cover the plants keeping the moisture inside the dome. Use some Olivias cloning solution (not cloning gel). It's a very low nute concentration additive. When you cut your clones do it under water (in a shallow dish) and cut them at a 45 degree angle. Scrape about 1-2" of the side of the stem with your razor......just ever so lightly. Dip them in honey and suspend them with rubber plugs right in the spray stream. Bingo...that's all there is to it.