stay away from coco...until you have more experience or forever.

Hydroton is all you need, but rockwool works great, if you can master it...in a bubbler it works great...I am doing grows with both methods...r'wool cubes in one 4 top bubbler and hydroton in netpots in 5 gallon buckets. goodluck
latewood Reviewed by latewood on . Q: Best Medium for bubbler??? What is the best grow medium for a bucket bubbler? Thanks, Blue:dance: Rating: 5