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if you are having that luck with hermies you should look for a something causing them stress.
usually, light stress...
could be a light on a power strip or other device, an alarm sensor, under the door... visit your plants just after the lights go out. sit there for a couple minutes in the dark, and see if you don't find some light.
or, you just had some bad luck w/genetics. seems like allot of bad luck tho-
There are a couple of small red lights on my C.A.P. controller but I seriously doubt it is putting off enough lumens to stress the plants. It was also the same 3 strains two cycles in a row. I had 12 strains going at once and these 3were the only 3 that hermied both times. I have a panda film curtain blocking light from door. Ive always heard if you take seeds from a hermaphroditic strain and grow them out the offspring seeds and clones will also go Lola.
Pretty sure this is what happened. I guess 3 out of twelve is pretty shitty luck.