Nothing really brother. Just legality.
As far as all the hydro shop drama I seem to have started, I don't get where all the hate is coming from. It seems counter culture to me. Ya know, peace, love, and all that. When I was putting my system together, Green Hands had better pricing on an NFT setup and nutes, while Ohana had better prices on UFOs and grow tents (plus they had em in stock). Green Hands also hosted free classes, which were very helpful for me being totally new to the scene. Sure, Aaron tried to sell stuff at the classes, but he is trying to run a business and make a living after all... Can't condemn a man for that at all. And I highly doubt either Tom or Aron tried to rep a 2700k light as being blue, or a veg light... That's just sillyness.
Ohana is a good store too no doubt. I haven't had a bad experience at either store really, and I've spent quite a bit of time at each doing research and what not. I did notice they come from different schools of thought as far as their recommended methods though. Aron is an LED/coco/NFT guy and Christie (at Ohana) was recommending HPS/hydroton/ebb-n-flow. It's just different ways of doing the same thing really.
when I was a kid, Zoos were on the bottom of my list. As a guerilla grower since 73, I think these shops are mostly bullshit! Run by price gouging people who are usually new to the area. Sure, as a business owner, or front man. He wants to make a profit. But if you wanna make a healthy profit in Hawaii. He should have bought a 7/11 store, or a "Subway". Hydro stores are gonna be mostly have newbies in them cause they don't know better. Of these newbies, over 60% 0r more is probably medical cannabis patients...fucking sick people! You wanna turn a profit on a sick person? Just for the record, I'm also against taxing cannabis too for the very same reason! Why tax the sick for their meds?