Sjean, Since water itself weighs >8 lbs/gal, using pebbles in the trays increases the weight significantly. You might want to consider using 2 layers of "eggcrate" instead. Not to be confused w/the foam mattress topper, these are white acrylic or styrene lighting panels or louvers, usually used in commercial lighting fixtures. The panels are ~3/8" thick & the squares are 1/2" wide. Each panel is roughly 2' x 4' & cost is ~US$10. Here's a site where you can see what eggcrate looks like if you're not familiar with it: http://www.professionalplastics.com/cgi-bin/main/co_disp/displ/prrfnbr/85316 /sesent/00/Eggcrate-Louvers---Lighting
It can be cut to size. I found the easiest way is using a small pair of wire cutters, but I've also used a hacksaw. The plastic is hard & brittle. If you stack 2 sheets you won't have to fill the trays as often. Our homes are so dry this time of year the water evaporates faster than you'd think. Adding a few drops of Physan (RD-20 or Consan 20) to each tray will help keep the algae down too. And as others have said, using some kind of "tent" increases the benefit. Good growing. Sandy Hardy Savannah, GA Would you like to share my orchid photos? Please be sure to sign the guest book. http://community.webshots.com/user/sthardy _______________________________________________ the OrchidGuide Digest (OGD) [email protected] http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
