- Joined
- 22 Nov 2015
- Messages
- 558
one light at 50cm to substrate will grow anything you need, including HC which you can see in my journals at a similar distance. HC will also grow with one unit dimmed, good co2 distribution is more important than really high light.
Thanks Ian. That's reassuring to know since I can't really fit anymore redundant fishkeeping hardware in my loft haha. Could you link your journal or are they easily accessed another way?