Most any 'seed starting supplies' supplier carries them. Several source recommendations included in this discussion from further down the page. Price will all depend on how many you order - bulk orders being the cheapest of course. Just a few: http://www.growerssupply.com/farm/supplies/cat1a;gs_seed_starting.html http://www.greenhousemegastore.com/category/seed-starting http://www.gardenharvestsupply.com/ProductCart/pc/-c672.htm http://www.novoselenterprises.com/ http://www.dirtworks.net/Seed-Trays.html Dave Here is a link that might be useful: where to buy trays etc.

It is your choice of course but there have been plenty of published studies done on the effects of light exposure on roots. The root axons are damaged and burned. That interferes with the O2/CO2 exchange as well as the uptake of nutrients. The damage done to the roots and subsequently to the plant may not be visible to the human eye but that doesn't mean it doesn't exist. Microscopic examination clearly shows it. Since there are numerous alternatives available for containers and there are numerous signs one can use for the need to transplant, why choose to intentionally do something proven to be detrimental to the plant? Dave

Just checked the seedlings and omg, everything that was transplanted seems to really be growing up quick! 3-4 days and some seedlings seem to be 5x bigger from around 10mm high to 50-75mm high with massively increased leaf size. In my good seedling mix I am using a 50:50 mix of Searles premium potting mix + perlite, have added a lil bit of blood and bone, and I am also trialing Bactivate + the seaweed and bioboost (seems to have molasses to feed the bacteria) formula. Bactivate has 5 types of bacteria of the Bacillus family, Bacillus subtilis, Bac. megatherium, Bac. mucilaginosus, Bac. licheniformis, Bac. thuringiensis. The temperatures have also risen up to the late spring tropical heat, today the rains are sorta starting but not sure if they will last. Usually it's just very dry in the last few months which is extremely strange for where I live as we usually get 4-5m of rain. Not sure if the boost of growth is due to soil, or if splitting them helped. The original mix I was using was a seedling mix and sort of had a spongy wet appearance but I had also sifted larger particles out which probably didn't help. Trying the seed raising mix by itself seems to not work as good. My 50:50 mix doesn't appear to get as waterlogged, it's also what I used the first time around which had the marigolds, etc grow like crazy. The seedlings in the straight scotts mix in the small blue containers had some rootbound, some weren't, but they were 2-3 seedlings to each container and many seemed to have oodles of room to spread into with the small blue cells. Phlox drummonii Dwarf is what I was using. Also had 1 pansy popup. I now have around 80-100 heartseas! I transplanted them into larger 24cell trays and their growth has substantially increased in 3 or so days since repotting. Dietes Grandiflora popped up after about 2 months, slow to show but they seemed ok so far. I'll try move the seed table a bit over, there's a shaded spot a meter or so away that shades around 1pm onwards. My next run of seeds I will try stick to the 50:50 mix with bactivate and put fine grade vermiculite on top. Gonna try do bottom watering as well, but finding a way to do that for a fair few trays is a bit annoying.

Correction this is a 72 cell from Burpee. Thanks Laura