Humboldt Hydroponics 0 reviews Humboldt Hydroponics 601 I Street # 1 Arcata, CA 95521 (707) 822-3377 humboldthydroponics.com Tags: Arcata CA, hydroponic supplies Claim Listing Overview Reviews Humboldt Hydroponics is a hydroponics store located in Humboldt County. Add Your Review Please login to add your review.