<span class="link_user">@Patricia_Zamnesia</span>, thank you for helping try to solve this. The soil is definitely not optimal since it’s been reclaimed several times. I amend with a liberal amount of Dr. Earth and usually have decent results. I did check the pH and the soil was reading 8.5 between waterings and around 6.7-7 right after watering. The iron or sulphur lockout makes sense in that context.
After updating my diary this week I decided to check my timer and see if that could possibly be the culprit. I don’t know how or when it happened, not only was it set to 18/6 but the timer wasn’t even on. The lights had been running 24 hrs! Maybe I dreamed I set it to 12 hrs? The plant is probably very stressed as a result. It’s on 12 hrs now but I won’t be surprised if it hermies on me.
It looks like it was starting to flower at one point but I don’t know when the light schedule got screwed up. More importantly, I can’t believe it took so long for me to catch it.
Decent budget light for a small grow tent.
Handles my 32 x 32 inch ok. The newer style strip lights are probably a better investment since they provide better coverage. The lens on this supposedly helps with that. All in all, I’m happy with it.