Shit even heat stress ect can cause a herm the trick is to be gentle with everything light distance nutes temp Like don’t have temps on top end as no room for movement same for nutes I do half sometimes quarter doses let the plant talk to you don’t overload it you will see after abit ov growing that less is more as for the gilato I’d say ph issues but I’m no expert at defiecencys ect but it’s what I’d check I have seen similar once when my mate had bad roots in dwc so could be ph witch cause root probs so give it a check