Found my plant is Auto

what do i do now? do i give it bloom nutriens? switch light to 12/12? or keep it 20/4? its on day 20 and already starting to flower i notice it today

help?

That doesn't necessarily mean it's an auto. Some strains throw pistils when they are sexually mature. I'd just keep an eye on it for now. If it is an auto it will start to form buds soon, in which case just leave your light cycle as is and start feeding Bloom nutes. If it keeps vegging without calyxs forming proceed as you were originally planning.

thanks for the advice

I agree, this is likely just preflowers/showing sex.

IF it is an auto no need for 12 hr dark (they go 18-6 until harvest) so no rush to make that decision if you're not ready to flip, but the plants are telling you they're ready when you are!