On Abb lil buddies are the best organic poly farmers. Go to rad zone, mushroom brew is a must, singular cream colored glowing plants, harvest them. They farm almost twice as much as a bear. Best I've seen so far 60-80 on 1x official rates.
Possibly the most useful creature to go caving with as his small size but large health and damage allows him to withstand onycs,spiders and scorpions haven't encountered a arthurplura yet so not sure how effective he is against it