Unhappy Frisian Ducks

I've asked this before but it seems like a persistent issue and I have no idea how to solve it.

Both my Frisian Ducks are looking like shit. Compared to my other plants they just seem to be suffering. They're in the same soil, same location, and given the same nutrients.

Every week I can pull off maybe 10-15 unhappy leaves from both of the Ducks. In comparison, the Frisian Dew has a couple of yellow leaves but they've been there for several weeks and would require violence to remove, they're not "sick" in the same sense. Seems like a tiny bit of nitrogen deficiency or perhaps being shaded out.

Any ideas?

Have you tried adding a bit extra food/nutes to their pots? Maybe they are just heavier feeders and need a little extra.

TCH said:

Have you tried adding a bit extra food/nutes to their pots? Maybe they are just heavier feeders and need a little extra.

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I had not considered it to be honest. Perhaps it's as simple as that. I'll add some top dress to those two and see how they do. (On top of the regular liquid fertilizer)

My mind was looking at more complex issues, like PH or cal-mag deficiency/excess etc.

Thanks for the idea.

I honestly believe they are hungry. In my world I would feed one of them more food and see if there is a noticeable difference in leaf color. That's just my guess without more information.