oh boy , i use the foam cups too, first i use the 11 x 20 inch trays with 72 count cells then trans plant to 8.5 oz foam cut then the 16 oz cup, if u buy a lot go to sams. holes in the bottom, hym gas stove old phillips screwdriver heat and burn makes a nice hole or holes i like 3 and can burn thru 5 cupa at a wack.
going to a green house show in juce with lots of vendors and will be looking for trays that fit the cups to make life more stable
taking foam cups with me in a bad to test fit samples
lol
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