I use ILGM. So far no problems with them and I believe they ship worldwide. I just grew my first rockwool grow and got a 20 ounce plant. That was a photo period plant not auto, however I'm sure an auto would grow just fine in rockwool. I don't think you would get a 20 ounce auto either. My plant is OG Kush, which you can get autos of those. And I highly recommend OGK if your looking for couchlock weed.