Rx for chlorotic pepper

[Chuck]

The following pictures were taken of the same pepper plant over a period of 5 weeks. From the very beginning this plant was sickly. It never grew like the other peppers. Even as a seeding it was a weak plant. It was planted exactly the same as the other peppers, same soil, same fertilizer, same everything. I started to just pull it up and forget about it but then I thought that this could be a teachable moment. So here is what I did. First I repotted it and then into a gallon of water I put 1 oz of Chelated Iron, 1 oz of liquid humus and a handful of Epsom Salt. After this it was fertilized along with the rest of the peppers with Hasta Gro at 1/2 the rate once a week. The plant isn't 100% but close to it. It is producing and has almost caught up with the rest of the peppers.
Note date stamps

 

[DirtMechanic]

Just curious what the chelating agent for the iron happened to be? I understand a variety of encapsulations of iron are possible. Is it sort of a buffer or slow release idea?

 

[Chuck]

Just curious what the chelating agent for the iron happened to be? I understand a variety of encapsulations of iron are possible. Is it sort of a buffer or slow release idea?

I haven't a clue what the agent is. All I know is that it is fast acting as I can see results in 3 days. Everything I know about this stuff is what is shown in the picture. This is all the info on the bottle.