Yeah, looking at your photos, you’ve actually done the right stuff lowered temp, cut the ppfd, switched to clean water. But at day 88 on an auto, the foxtailing you’re seeing is probably just genetics plus some stress, and honestly, you’re basically at the finish line anyway.
Foxtailing usually happens from temp swings, light stress, or just the strain doing its thing. Acapulco Gold can be prone to it. That yellowing in your early photos tells me the plant got stressed somewhere maybe a heat spike, maybe pH drifted and now it’s making those weird bud structures.Real talk though at day 88, you can’t really fix the foxtailing now. The buds are already done forming. What you do is just finish strong keep temps stable (65–75°F is ideal), don’t keep dropping the ppfd, and let her finish. Most autos finish around day 65–75, so you’re basically there already. Just check your trichomes. When they’re mostly cloudy with some amber, chop her. Foxtailing doesn’t hurt the smoke it’s just cosmetic and usually stress, but the cannabinoids are all there. Next run, dial in your temps early and keep them steady. That’s the real move. You’re learning, just ride this one out to the end. She’s got enough left to finish fine.​​​​​​​​​​​​​​​​