Hmm never grew any of these strains, but manganese deficiency is xtremely rare for one reason, it's a micronutrient that easily gets provided in healthy soil... but then coco coir is technically soilless - if you go back a few days on my blog, you're gonna find a post explaining the difference - so you should treat it like a hydro medium. It's basically inert, so it needs to be enriched or regularly pumped with nutes if you're going with a feeding schedule.

If you post a few pics, I could probably tell you what this deficiency really is.

And if you don't consume it, someone else will, so it's all good :)